Tag: M.W=150-200

Worsfold, D. J. published the artcilePolysilane preparations, Formula: C7H16Cl2Si, the publication is ACS Symposium Series (1988), 101-11, database is CAplus.

The reductive coupling of dichlorosilanes with Na in refluxing PhMe behaved as a chain reaction rather than a simple polycondensation. The high-mol.-weight products were formed near the start of the reaction and were not dependent on equivalent proportions of reactants. The complex mixture of products of widely separated mol. weight could be interpreted by the simultaneous operation of 2 routes to the polymer. One of these was promoted by the presence of organometallic species and could be via an anionic step chain growth. The reaction kinetics suggested that the growing chain had a comparatively long lifetime. Effect of the Na surface area on chain propagation was discussed. Copolymerization experiments showed a large difference in reactivity of aryl and alkyl substituted dichloromethylsilanes.

ACS Symposium Series 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 C6H13BO3, Formula: C7H16Cl2Si.

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

Worsfold, D. J. published the artcileA study of polysilylene preparations, Name: Dichloro(hexyl)(methyl)silane, the publication is Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) (1987), 28(1), 415-16, database is CAplus.

Polymerization of hexylmethyldichlorosilane  [14799-94-1] and methylphenyldichlorosilane  [149-74-6] in the presence of Na yielded polysilylenes with polymodal mol. weight distributions. The rapid formation of high-mol.-weight products indicated an addition polymerization mechanism.

Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) 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 C13H10N2S, Name: Dichloro(hexyl)(methyl)silane.

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

Hshieh, Fu-Yu published the artcileNote: correlation of closed-cup flash points with normal boiling points for silicone and general organic compounds, Application In Synthesis of 14799-94-1, the publication is Fire and Materials (1997), 21(6), 277-282, database is CAplus.

A correlation was developed between closed-cup flash points and normal b.ps. for organic silanes or siloxanes. In addition, a more general correlation was developed between these two properties for the general organic compounds, including silanes and siloxanes. The closed-cup flash points can be predicted using empirical equations. The standard estimation errors were 11.06 and 11.66°C for silicon-containing compounds (silanes and siloxanes) and general organic compounds (including silicon-containing compounds), resp.

Fire and Materials 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, Application In Synthesis of 14799-94-1.

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

Kozakiewicz, Irena published the artcileReactions of 2-(4-chloro-2-mercapto-5-methylbenzenesulfonamido)-5-methylimidazoline with some (dialkylamino)alkyl chlorides, Name: 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride, the publication is Annales Academiae Medicae Gedanensis (1995), 367-70, database is CAplus.

Reactions of 2-(4-chloro-2-mercapto-5-methylbenzenesulfonamido)-5-methylimidazoline with some (dialkylamino)alkyl chlorides were described. Thus, treating mercaptobenzenesulfonamido derivative I (R = H) with RCl·HCl [R = CH₂CH₂NR’₂, R’ = Me, Bu, Pr; R = (CH₂)₃NMe₂, CH₂CH₂NR”₂, NR”₂ = morpholino; R = CH₂CMe₂NMe₂, CHMeCH₂NMe₂] in Me₂CHOH containing Me₂CHONa gave 23-72% alkylated I (same R).

Annales Academiae Medicae Gedanensis published new progress about 4584-49-0. 4584-49-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Salt,Amine,Aliphatic hydrocarbon chain, name is 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride, and the molecular formula is C5H13Cl2N, Name: 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride.

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

Liu, Changchun published the artcileSynthesis and fungicidal activity of (2-chloropyridin-5-yl)methyl carbamates, Safety of 3-Chloro-4-fluoronitrobenzene, the publication is Nongyaoxue Xuebao (2015), 17(1), 97-100, database is CAplus.

Eleven novel (2-ehloropyridin-S-yl)methyl carbamates were synthesized by Pd-Fe/TiO₂ catalyzed carbonylation of aromatic nitro-compounds and (2-chloropyridin-S-yl) methanol with carbon monoxide. Their structures were confirmed by ¹H NMR and MS. Preliminary fungicidal activity tests indicated that some of the target compounds exhibited certain degree of inhibiting effect against four tested strains at the concentration of 50 mg/L. The inhibition rate against Gibberella zeae was over 77.3% for compound I [(2-chloropyridin-5-yl)methyl (4-methoxyphenyl) carbamate], II [(2-chloropyridin-5-yl)methyl (2,4-dichlorophenyl) carbamate] and III [(2-ehloropyridin-S-yl)methyl (3,4-dichlorophenyl) carbamate]. Compound I showed 82.5% of inhibition rate against Physalospora piricola, that was almost equal to carbendazim. All compounds showed better fungicidal activities against Botrytis cinerea than carbendazim.

Nongyaoxue Xuebao 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, Safety of 3-Chloro-4-fluoronitrobenzene.

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

Lopatnikova, E. published the artcileIntramolecular transformations of silylenes in the gas phase, Quality Control of 14799-94-1, the publication is Doklady Akademii Nauk SSSR (1983), 268(1), 108-11 [Chem.], database is CAplus.

Treatment of RCH₂CH₂SiMeCl₂ [R = (CH₂)_nH, n = 0, 1-4] with K/Na (7:1) in a tubular continuous reactor at 300-340° and 0.1-1.0 mm gave, after trapping of the products in N(l) followed by gas chromatog-mass spectrometric identification, 30-50% RCH:CH₂. A mechanism involving intramol. β-attack by silylene (RCH₂CH₂SiMe) to give a 3-membered ring and subsequent elimination of the silylene group was proposed.

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, Quality Control of 14799-94-1.

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

Mangte, Anvita D. published the artcileSynthesis and antimicrobial evaluation of protected lactosyl isothiourea derivatives, COA of Formula: C7H7ClN2S, the publication is Asian Journal of Chemical and Environmental Research (2014), 7(1-4), 50-54, database is CAplus.

Protected lactosyl isothiourea were synthesized by nucleophilic addition of per-O-acetyl lactosyl aryl isothiourea to tolyl isothiocyanate. Structures of these compounds were confirmed on the basis of IR, NMR, Mass spectra and elemental anal. These compounds were also screened for their in vitro antimicrobial activities against bacteria S. aureus, E. coli, P. vulgaris, P. aeruginosa and fungi A. niger, Penicillium.

Asian Journal of Chemical and Environmental Research published new progress about 3696-23-9. 3696-23-9 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Thiourea,Amine,Benzene,Amide, name is 1-(4-Chlorophenyl)thiourea, and the molecular formula is C7H7ClN2S, COA of Formula: C7H7ClN2S.

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

Maristany, Jose M. Millet published the artcileDerivatives of N-methyl-4-phenylpiperidine-4-carboxylic and 2,2-diphenyl-4-dimethytaminovaleric acids, Category: chlorides-buliding-blocks, the publication is Rev. real acad. cienc. exact., fís. y nat. Madrid (1961), 59-103, database is CAplus.

N-Carboxyalkylamides of the title acids (I and II, resp.), analogs of dolatin and methadone, were prepared and tested. Derivatives of II had comparable spasmolytic activity, derivatives of I had low activity, and none had analgesic activity. The total syntheses of the chlorides (III and IV) of I and II were described with minor modifications of literature preparations Attempted condensations of III and IV with Et (V), Pr (VI), iso-Pr (VII), allyl (VIII), and Bu carbamates in the presence of Na and C₆H₆ at reflux, Na and Et₂O at reflux, EtMgBr (i.e., MgBr salt of the carbamate), Na and C₅H₅N, and alone gave poor results and the following method was adopted. To 10 g. NaH (50% dispersed in mineral oil) in 150 ml. anhydrous C₆H₆ was added 0.2 mole NH₂CO₂R in 250 ml. anhydrous C₆H₆ with cooling and stirring at a rate to maintain the temperature at 6-7°. Stirring was continued 30 min., during addition of 27.4 g. III.HCl (freshly prepared) in 150 ml. anhydrous C₆H₆, 2 hrs. more at 6-7°, 4 hrs. while the mixture warmed to room temperature, and 1 day longer. Workup yielded CH₂.CH₂.NMe.CH₂.CH₂.C(Ph)CONHCO₂R (X): (R in X, g. crude yield, m.p., and g. recovered acid given): Et, 16, 140-1.5° (Me₂CO), 9.5; Pr, 18.5, 138-9.5° (Me₂CO), 7; iso-Pr, 15, 136-8o (Me₂CO), 6; allyl, 16, 112-13.5° (Me₂CO), 8; Bu (XI), 15, 99.5-100.5° (Me₂CO) [picrate m. 163-4.5° (EtOH); HCl salt m. 108-10° (decomposition)], 6. X were very soluble in Me₂CO and EtOH, slightly soluble in Et₂O, and soluble in C₆H₅, 5% NaOH, and acids. Me₂NCHMeCH₂CPh₂CONHCO₂R (XII) were prepared similarly from 6.9 g. Na sand and 0.3 mole NH₂CO₂R (R in XII, g. pure yield, and m.p. given): Et, 10, 153-4.5° (Me₂CO); Pr, 10, 158-9° (Me₂CO); iso-Pr, 10, 140-1° (Me₂CO); allyl, 13.8, 139-9.5° (Me₂CO); and Bu (XIII), 12, 97-7.5° (Me₂CO) [picrate m. 128° (indefinite); HCl salt, liquid]. XII had the same solubilities as X, but were insoluble in dilute NaOH. XI was hydrolyzed by acid to the corresponding starting acid and by aqueous NH₃ and NaOEt in EtOH to the corresponding amide, whereas XIII was hydrolyzed by all three reagents to its corresponding amide. V (81 g.), 66 g. VI, and 60 g. VIII were prepared by heating 100 g. (NH₂)₂CO and 600 ml. of the appropriate alc. in an autoclave 60 hrs. at 160°, distilling the mixture to 150°, and distilling the residue in vacuo. Urea nitrate (200 g.) and 1 l. iso-PrOH refluxed 100 hrs. and the mixture worked up similarly gave 89 g. VII.

Rev. real acad. cienc. exact., fís. y nat. Madrid published new progress about 4584-49-0. 4584-49-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Salt,Amine,Aliphatic hydrocarbon chain, name is 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride, and the molecular formula is C5H13Cl2N, Category: chlorides-buliding-blocks.

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

Masamba, W. R. L. published the artcileDetection of trace amounts of chemical warfare agents in paint by gas chromatography and gas chromatography-mass spectrometry, COA of Formula: C4H8Cl2S2, the publication is Malawi Journal of Science & Technology (2001), 47-55, database is CAplus.

The chem. warfare agents pinacoly methylphosphonofluoridate (soman), bis[(2-chloroethylthio)ethyl] ether (O mustard), and tris(2-chloroethyl)amine (nitrogen mustard) and low levels of bis(2-chloroethyl) sulfide (mustard gas, H), 1,2-bis(2-chloroethylthio)ethane (Sesquimustard), and bis(2-chloroethyl) disulfide were detected by gas chromatog. and gas chromatog.-mass spectrometry in a paint sample that had been prepared by spiking soman, O mustard, and nitrogen mustard to simulate a case where chem. warfare agents were absorbed into a paint matrix. The results show that gas chromatog. and gas chromatog.-mass spectrometry can be used for the detection of such chem. warfare agents in paint samples.

Malawi Journal of Science & Technology 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, COA of Formula: C4H8Cl2S2.

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

Mathieu, Didier published the artcileFlash Points of Organosilicon Compounds: How Data for Alkanes Combined with Custom Additive Fragments Can Expedite the Development of Predictive Models, Category: chlorides-buliding-blocks, the publication is Industrial & Engineering Chemistry Research (2012), 51(43), 14309-14315, database is CAplus.

A particularly simple approach to evaluate flash points (FP) from additive fragment contributions is outlined. Since it is based on a square root expression derived from examining n-alkane data, it avoids the need for nonlinear fitting procedures and for trial-and-error optimization of anal. relationship between FP and mol. descriptors. Despite a specially small number of additive contributions, the method can be applied to most organic mols. For organosilicon compounds, it exhibited some advantages vs. previously available procedures while providing very similar performance with an average absolute deviation from experiment close to 12° K, a determination coefficient R² = 0.89, and only 1 error >40° K.

Industrial & Engineering Chemistry Research 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, Category: chlorides-buliding-blocks.

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