Month: December 2022

Kozlov, S. A. published the artcileEstablishment of reasons for the formation of chloric-organic compounds in commodity oil, Synthetic Route of 1002-41-1, the publication is Neftepromyslovoe Delo (2019), 64-69, database is CAplus.

At present, normative documents set strict requirements to the amount of light organic-chloric compounds (LOHC) in oil intended for delivery to pipeline transportation system. LOHC high concentrations in oil and oil fractions increase the intensity of corrosion and the sedimentation amount inside the technol. equipment, on the equipment surface as well deactivation of the catalytic compositions during oil refining processes. That’s why, with account of the above-said, the problems of LOHC amount control in oil and fixing the reasons for their occurrence are very urgent oil production and oil processing enterprises. The paper analyzes the possible reasons for registering LOHC increased amounts The determination of LOHC in oils and acidic compounds, which are used to enhance oil production is exptl. studied, LOHC possible formation during oil and hydrochloric acid interaction, including in reservoir conditions, is evaluated. The results of exptl. studies have shown that acidic compositions can contain organic-chloric compounds (OCC). It has been established that oil treatment by hydrochloric acid under reservoir conditions provides formation of an addnl. organic-chloric compounds, and LOHC content increases depending on the temperature raise in the reservoir during treatment. The increase of the organic-chloric components concentration in oil also depends on the type of the rock. The use of disintegrated carbonate core, under other equal conditions, compared with the terrigenous rock, leads to a more significant increase in the organic-chloric compounds concentration in oil.

Neftepromyslovoe Delo published new progress about 1002-41-1. 1002-41-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 1,2-Bis(2-chloroethyl)disulfane, and the molecular formula is C4H8Cl2S2, Synthetic Route of 1002-41-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Whitfield, Robert E. published the artcileFlame-resistant wool. IV. Chemical modification of wool with haloorganic acid halides, Application of 2,3-Dibromopropionylchloride, the publication is Textile Research Journal (1972), 42(9), 533-5, database is CAplus.

The flame resistance of wool fabrics was increased by treatment with aliphatic haloorganic acid halides, e.g. trichloroacetyl chloride [76-02-8] and 2-bromopropionyl bromide [563-76-8], in DMF for 15-30 min at 50°; both Cl and Br derivatives were effective. At least 2% combined halogen was necessary to protect woolen fabrics. The flame resistance was durable to drycleaning and laundering. Prior stabilization of the fabric to felting shrinkage was needed to evaluate durability of flame resistance to laundering.

Textile Research Journal published new progress about 18791-02-1. 18791-02-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 2,3-Dibromopropionylchloride, and the molecular formula is C10H12O5, Application of 2,3-Dibromopropionylchloride.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Burlyka, A. F. published the artcileFungus-resistant gypsum-paperboard sheets, Category: chlorides-buliding-blocks, the publication is Stroitel’nye Materialy i Konstruktsii (1988), 18, database is CAplus.

Application of 0.2-1.4% aqueous solutions of Katapin to the outer surfaces of gypsum boards gave good antifungal protection. Treatment with a bitumen mastic, Polidim, Decamethoxine, and Fosulen gave unsatisfactory results.

Stroitel’nye Materialy i Konstruktsii published new progress about 38146-42-8. 38146-42-8 belongs to chlorides-buliding-blocks, auxiliary class Achiral Phase-Transfer Catalysts, name is N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, and the molecular formula is C38H74Cl2N2O4, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

McConnell, N. published the artcileMicrowave-assisted green synthesis of anilines, phenols, and benzenediamines without transition metals, ligands, or organic solvents, Category: chlorides-buliding-blocks, the publication is Green Chemistry Letters and Reviews (2018), 11(3), 286-295, database is CAplus and MEDLINE.

A novel, microwave-assisted method producing anilines I (R = H, 2-F, 2-Cl, etc.; EWG = 2-NO₂, 4-NO₂, 3-NO₂, etc.) and phenols II (R = H, 4-Br, 2-CF₃, etc.; EWG = 4-NO₂, 2-NO₂) from activated aryl halides is reported. This high-yielding method reduces current reaction requirements and removes organic solvents and catalysts making a more efficient and eco-friendly alternative for the synthesis of important pharmaceutical building blocks.

Green Chemistry Letters and Reviews published new progress about 350-30-1. 350-30-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Nitro Compound,Benzene, name is 3-Chloro-4-fluoronitrobenzene, and the molecular formula is C6H3ClFNO2, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Nesmeyanov, A. N. published the artcileThermal telomerization of methyldichlorosilane with olefins, Recommanded Product: Dichloro(hexyl)(methyl)silane, the publication is Doklady Akademii Nauk SSSR (1957), 271-2, database is CAplus.

Heating 123 g. MeSiHCl₂ 2 hrs. in a steel autoclave with C₂H₄ to 260° and a final pressure of 560 atm. gave 80% conversion to telomerization products MeSiCl₂(CH₂CH₂)_nH, with n = 1-6, as follows (n, % yield, b.p., n_D²⁰, and d₂₀ shown): 1, 23.6, b. 100°, -, -; 2, 25.6, b. 147-8°, 1.4312, 1.0427; 3, 17.7, b₃₂ 91°, 1.4390, 0.9931; 4, 13.4, b₆ 94° 1.4440, 0.9761; 5, 4.7, b₃ 111-14°, 1.4490, 0.9600; 6, 3.8, b₃ 124-7°, 1.4532, 0.9552. About 8.5% undescribed higher telomers were also formed. A similar reaction of MeSiHCl₂ and C₃H₆ was run 3 hrs. at 260-75° and 100 atm. maximum pressure yielded from 151 g. MeSiHCl₂, 216 g. products giving MeSiCl₂(C₃H₆)_nH (n shown) as follows: 1, 49, b. 123-4°, 1.4240, -; 2, 26.2, b₃₂ 82°, 1.4400, -; 3, 3.9, b₂ 80-2°, 1.4540, -; 10% undescribed higher telomers.

Doklady Akademii Nauk SSSR published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Recommanded Product: Dichloro(hexyl)(methyl)silane.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Nesmeyanov, A. N. published the artcileThermal telomerization of silanes with olefins, Product Details of C7H16Cl2Si, the publication is Tetrahedron (1957), 248-52, database is CAplus.

Thermal telomerization of MeSiHCl₂ (I) with C₂H₄ at 260-75°/560 atm. was effected in a 500 cc. stainless steel autoclave. I (123 g.) in an N atm. was mixed with C₂H₄, the autoclave heated to 260°/500 atm., and the mixture maintained 2 hrs. at 260-70° with the pressure falling to 50 atm. The collected products (499 g.) from 3 runs (381 g. I) were fractionated to give 51 g. I and the tabulated pure MeSiCl₂(C₂H₄)_nH products (n, % yield, n²⁰_D, d₂₀, MR, b.p., given): 1, 23.6, -, -, -, 100°; 2, 25.6, 1.4312, 1.0427, 43.48, 147-8°; 3, 17.7, 1.4390, 0.9931, 52.75, 91°/32 mm.; 4, 13.4, 1.4440, 0.9761, 61.83, 94°/6 mm.; 5, 4.7, 1.4490, 0.9600, 71.32, 111-14°/3 mm.; 6, 3.8, 1.4532, 0.9552, 80.20, 124-7/3 mm.; above 6, 8.5, -, -, -, -. The reaction with SiCl₃H (II) was carried out 2 hrs. at 270-85° at maximum pressure 200 atm. in 4 runs (261 g. II) and yielded 353 g. product, distilled over a 15 plate column to give 10 g. II and pure alkyltrichlorosilanes, SiCl₃(C₂H₄)_nH (n, % yield, n²⁰_D, d₂₀, MR, and b.p. recorded): 1, 20.1, -, -, -, 98°; 2, 25.3, 1.4352, 1.1577, 43.19, 146-7°; 3, 15.4, 1.4440, 1.1094, 52.51, 87-9°/30; 4, 13.1, 1.4490, 1.0744, 61.76, 96.5°/10; 5, 4.0, 1.4547, 1.0501, 71.17, 76°/2; above 5, 12.2,-,-,- -. The structures of the methylalkyldichloro- and alkyltrichlorosilanes were substantiated by the MR determinations and by formation by the Grignard reaction of the corresponding trimethyl derivatives (compound, b.p., n²⁰_D, d₂₀, and MR given): BuSiMe₃, 114°, 1.4030, 0.7203, 44.12; C₆H₁₃SiMe₃, 163°, 1.4160, 0.7412, 53.58; C₈H₁₇SiMe₃, 75°/10 mm., 1.4242, 0.7646, 62.58. The reaction of I with C₃H₆ was carried out in 2 runs at 260-75° 3 hrs. at 100 atm. maximum pressure to give 216 g. product from 151 g. I. Distillation gave 21 g. I and MeSiCl₂(C₃H₆)_nH (n, n²⁰_D, and b.p./mm. given): 1, 1.4240, 123-4°; 2, 1.4400, 82°/32; 3, 1.4540, 80-2°/2. The telomerization reactions resulted from the cleavage of the Si-H bond, as evidenced by its absence in the compounds obtained as shown by the neg. test with KOH in H₂O. It is evident that the thermal reaction is of a chain character.

Tetrahedron published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Product Details of C7H16Cl2Si.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Nesmeyanov, A. N. published the artcileThermal telomerization of olefins with silanes, Quality Control of 14799-94-1, the publication is Nesmeyanov, A. N., Izbrannye Trudy (1959), 688-95, database is CAplus.

cf. CA 51, 14541i; 52, 6165d. MeSiCl₂H (11.5 g.) was autoclaved with 4.3 g. ethylene in a glass ampul at 320-40° for 3 hrs. A 46% conversion was realized, with MeEtSiCl₂ and EtBuSiCl₂ comprising 80% and 17% of the product, resp. This was repeated in a steel 2.7-1. bomb with 1 mole MeSiCl₂H and 2.7 moles ethylene at 340° for 40 min. A 46% conversion was also realized with 42% MeEtSiCl₂ and 28% MeBuSiCl₂ (CA 51, 11988b). Ph₃SiH (32 g.), 30 ml. n-hexane, and 25 g. ethylene autoclaved 12 hrs. at 290-300° gave EtSiPh₃, m. 68-70°, BuSiPh₃, m. 81-2°, and (Ph₃Si)₂O, m. 221°. In a 0.5-1. steel autoclave was placed 65 g. MeSiCl₂H, 50 ml. propylene, and 0.1 ml. of a solution containing 0.00865 g. H₂PtCl₆.6H₂O in iso-PrOH. The mixture was warmed to room temperature, the reaction proceeding exothermally. After an hr., the mixture was removed and distilled to give 77 g. BuSiMeCl₂, b. 123-4°, n²⁰_D 1.4230, d₂₀ 1.0432, Raman spectra given. Propylene and MeSiCl₂H treated (CA 51, 11988b) and the MePrSiCl₂ isolated and methylated by the Grignard method gave Me₃SiPr, n²⁰_D 1.3925, d₂₀ 0.7020, Raman spectra given. Lines corresponding to Me₃SiPr-iso were not observed. C₆H₁₃SiMeCl₂ (from propylene and MeSiCl₂H) was also methylated with a Grignard to give C₆H₁₃SiMe₃, b₆₀ 82-3°, n²⁰_D 1.4171, d₂₀ 0.7493. A study was done with MeSiCl₂H and ethylene to determine optimum conditions for preparation of MeSiCl₂(C₂H₄)_nH, where n = 1, 2, 3, >3. A temperature of 300 ± 10° and 150 ± 5 atm. in an autoclave were best. Maximum yield, n = 1, when by moles C₂H₄/MeSiCl₂H = 0.75; n = 2, when C₂H₄/MeSi- Cl₂H = 1.5; n = 3, when C₂H₄/MeSiCl₂H = 2.8 and 3.4; n > 3 when C₂H₄/MeSiCl₂H = 9. The ratio C₂H₄/MeSiCl₂H was 2 and the pressure held at 100 atm. to give the maximum yield, n = 1, when temperature was raised to 400° and the mixture allowed to cool; n = 2, when the temperature = 320° for 10 min.; n = 3, when the temperature = 305° for 50 min.; n > 3, when the temperature = 285° for 120 min.

Nesmeyanov, A. N., Izbrannye Trudy published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Quality Control of 14799-94-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Nesmeyanov, A. N. published the artcileThermal telomerization of methyldichlorosilane with olefins, Recommanded Product: Dichloro(methyl)(octyl)silane, the publication is Doklady Akademii Nauk SSSR (1957), 271-2, database is CAplus.

Heating 123 g. MeSiHCl₂ 2 hrs. in a steel autoclave with C₂H₄ to 260° and a final pressure of 560 atm. gave 80% conversion to telomerization products MeSiCl₂(CH₂CH₂)_nH, with n = 1-6, as follows (n, % yield, b.p., n_D²⁰, and d₂₀ shown): 1, 23.6, b. 100°, -, -; 2, 25.6, b. 147-8°, 1.4312, 1.0427; 3, 17.7, b₃₂ 91°, 1.4390, 0.9931; 4, 13.4, b₆ 94° 1.4440, 0.9761; 5, 4.7, b₃ 111-14°, 1.4490, 0.9600; 6, 3.8, b₃ 124-7°, 1.4532, 0.9552. About 8.5% undescribed higher telomers were also formed. A similar reaction of MeSiHCl₂ and C₃H₆ was run 3 hrs. at 260-75° and 100 atm. maximum pressure yielded from 151 g. MeSiHCl₂, 216 g. products giving MeSiCl₂(C₃H₆)_nH (n shown) as follows: 1, 49, b. 123-4°, 1.4240, -; 2, 26.2, b₃₂ 82°, 1.4400, -; 3, 3.9, b₂ 80-2°, 1.4540, -; 10% undescribed higher telomers.

Doklady Akademii Nauk SSSR published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Recommanded Product: Dichloro(methyl)(octyl)silane.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Nesmeyanov, A. N. published the artcileThermal telomerization of silanes with olefins, Related Products of chlorides-buliding-blocks, the publication is Tetrahedron (1957), 248-52, database is CAplus.

Thermal telomerization of MeSiHCl₂ (I) with C₂H₄ at 260-75°/560 atm. was effected in a 500 cc. stainless steel autoclave. I (123 g.) in an N atm. was mixed with C₂H₄, the autoclave heated to 260°/500 atm., and the mixture maintained 2 hrs. at 260-70° with the pressure falling to 50 atm. The collected products (499 g.) from 3 runs (381 g. I) were fractionated to give 51 g. I and the tabulated pure MeSiCl₂(C₂H₄)_nH products (n, % yield, n²⁰_D, d₂₀, MR, b.p., given): 1, 23.6, -, -, -, 100°; 2, 25.6, 1.4312, 1.0427, 43.48, 147-8°; 3, 17.7, 1.4390, 0.9931, 52.75, 91°/32 mm.; 4, 13.4, 1.4440, 0.9761, 61.83, 94°/6 mm.; 5, 4.7, 1.4490, 0.9600, 71.32, 111-14°/3 mm.; 6, 3.8, 1.4532, 0.9552, 80.20, 124-7/3 mm.; above 6, 8.5, -, -, -, -. The reaction with SiCl₃H (II) was carried out 2 hrs. at 270-85° at maximum pressure 200 atm. in 4 runs (261 g. II) and yielded 353 g. product, distilled over a 15 plate column to give 10 g. II and pure alkyltrichlorosilanes, SiCl₃(C₂H₄)_nH (n, % yield, n²⁰_D, d₂₀, MR, and b.p. recorded): 1, 20.1, -, -, -, 98°; 2, 25.3, 1.4352, 1.1577, 43.19, 146-7°; 3, 15.4, 1.4440, 1.1094, 52.51, 87-9°/30; 4, 13.1, 1.4490, 1.0744, 61.76, 96.5°/10; 5, 4.0, 1.4547, 1.0501, 71.17, 76°/2; above 5, 12.2,-,-,- -. The structures of the methylalkyldichloro- and alkyltrichlorosilanes were substantiated by the MR determinations and by formation by the Grignard reaction of the corresponding trimethyl derivatives (compound, b.p., n²⁰_D, d₂₀, and MR given): BuSiMe₃, 114°, 1.4030, 0.7203, 44.12; C₆H₁₃SiMe₃, 163°, 1.4160, 0.7412, 53.58; C₈H₁₇SiMe₃, 75°/10 mm., 1.4242, 0.7646, 62.58. The reaction of I with C₃H₆ was carried out in 2 runs at 260-75° 3 hrs. at 100 atm. maximum pressure to give 216 g. product from 151 g. I. Distillation gave 21 g. I and MeSiCl₂(C₃H₆)_nH (n, n²⁰_D, and b.p./mm. given): 1, 1.4240, 123-4°; 2, 1.4400, 82°/32; 3, 1.4540, 80-2°/2. The telomerization reactions resulted from the cleavage of the Si-H bond, as evidenced by its absence in the compounds obtained as shown by the neg. test with KOH in H₂O. It is evident that the thermal reaction is of a chain character.

Tetrahedron published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Related Products of chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Larsson, Malin published the artcileIdentification of potential aryl hydrocarbon receptor ligands by virtual screening of industrial chemicals, Application In Synthesis of 42074-68-0, the publication is Environmental Science and Pollution Research (2018), 25(3), 2436-2449, database is CAplus and MEDLINE.

We have developed a virtual screening procedure to identify potential ligands to the aryl hydrocarbon receptor (AhR) among a set of industrial chems. AhR is a key target for dioxin-like compounds, which is related to these compounds’ potential to induce cancer and a wide range of endocrine and immune system-related effects. The virtual screening procedure included an initial filtration aiming at identifying chems. with structural similarities to 66 known AhR binders, followed by 3 enrichment methods run in parallel. These include two ligand-based methods (structural fingerprints and nearest neighbor anal.) and one structure-based method using an AhR homol. model. A set of 6445 commonly used industrial chems. was processed, and each step identified unique potential ligands. Seven compounds were identified by all three enrichment methods, and these compounds included known activators and suppressors of AhR. Only approx. 0.7% (41 compounds) of the studied industrial compounds was identified as potential AhR ligands and among these, 28 compounds have to our knowledge not been tested for AhR-mediated effects or have been screened with low purity. We suggest assessment of AhR-related activities of these compounds and in particular 2-chlorotrityl chloride, 3-p-hydroxyanilino-carbazole, and 3-(2-chloro-4-nitrophenyl)-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2(3H)-one.

Environmental Science and Pollution Research published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C19H14Cl2, Application In Synthesis of 42074-68-0.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics