Category: chlorides-buliding-blocks

Pendem, Venkata Bhavanarushi published the artcileIron Mediated Desulfurization and C-N Bond Formation: Strategy for the Synthesis of Thioureas, Application of 1-(4-Chlorophenyl)thiourea, the publication is Letters in Organic Chemistry (2018), 15(12), 1025-1029, database is CAplus.

A highly efficient and simple protocol for the construction of aromatic and aliphatic thioureas from their resp. amines in the presence of cheap, readily available and air-stable iron catalyst in one-pot three-step reaction is described [e.g., aniline + CS₂ + NH₃ → PhNHC(:S)NH₂ (99%) in presence of Fe(NO₃)₃ and NaHCO₃ in DMF]. All the reactions were carried out under optimized reaction conditions to get the target products in good to excellent yields and shorter reaction time.

Letters in Organic Chemistry 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, Application of 1-(4-Chlorophenyl)thiourea.

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

Padwa, Albert published the artcileDichloroketene-Induced Cyclizations of Vinyl Sulfilimines: Application of the Method in the Synthesis of (±)-Desoxyeseroline, Application In Synthesis of 7080-50-4, the publication is Journal of Organic Chemistry (2005), 70(21), 8538-8549, database is CAplus and MEDLINE.

The reactions of several aryl-, furanyl-, and vinyl-substituted sulfilimines, e.g. I, with dichloroketene proceeded at 25 °C to yield thioalkyl-substituted γ-lactams, e.g. II. The overall process involves nucleophilic addition of the nitrogen atom of the sulfilimine onto the highly electrophilic dichloroketene to first generate a zwitterionic intermediate. A subsequent [3,3]-sigmatropic rearrangement is followed by intramol. trapping of the Pummerer cation by the amido anion to furnish the observed γ-lactam product. Incorporation of donor groups on the aromatic ring of the sulfonyl functionality had little effect when aryl-substituted sulfilimines were used but exhibited a major effect on the efficiency of the reaction with furanyl-substituted systems. The placement of an electron donor group (i.e., OMe) on the sulfonyl aryl group enhances the nucleophilicity of the amido anion contained within the sulfonium ion intermediate and facilitates the rate of the 3,3-sigmatropic rearrangement. Styryl-substituted sulfilimines cyclize in a stereospecific manner and produce a 3:2-mixture of γ-lactams and the isomeric imino-lactone system. The heavily functionalized γ-lactams are easily converted to a variety of nitrogen containing substrates. The vinyl sulfilimine cyclization method was applied to the total synthesis of the Calabar alkaloid (±)-desoxyeseroline (III).

Journal of Organic Chemistry published new progress about 7080-50-4. 7080-50-4 belongs to chlorides-buliding-blocks, auxiliary class Halogenation Reagent,Inhibitor, name is Sodium chloro(tosyl)amide trihydrate, and the molecular formula is C7H13ClNNaO5S, Application In Synthesis of 7080-50-4.

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

Wang, Qiu published the artcileA New Synthesis of γ-Lactams Based on the Reaction of Vinyl Sulfilimines with Dichloroketene, Synthetic Route of 7080-50-4, the publication is Organic Letters (2005), 7(5), 839-841, database is CAplus and MEDLINE.

The reactions of several aryl-, furanyl-, and vinyl substituted sulfilimines with dichloroketene proceeded at 25 °C to yield thioalkyl substituted γ-lactams which, in turn, were converted to a variety of nitrogen-containing substrates.

Organic Letters published new progress about 7080-50-4. 7080-50-4 belongs to chlorides-buliding-blocks, auxiliary class Halogenation Reagent,Inhibitor, name is Sodium chloro(tosyl)amide trihydrate, and the molecular formula is C8H6ClN, Synthetic Route of 7080-50-4.

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

Nakajima, Yusuke published the artcileAuxin transport and response requirements for root hydrotropism differ between plant species, Synthetic Route of 33697-81-3, the publication is Journal of Experimental Botany (2017), 68(13), 3441-3456, database is CAplus and MEDLINE.

The direction of auxin transport changes in gravistimulated roots, causing auxin accumulation in the lower side of horizontally reoriented roots. This study found that auxin was similarly involved in hydrotropism and gravitropism in rice and pea roots, but hydrotropism in Lotus japonicus roots was independent of both auxin transport and response. Application of either auxin transport inhibitors or an auxin response inhibitor decreased both hydrotropism and gravitropism in rice roots, and reduced hydrotropism in pea roots. However, Lotus roots treated with these inhibitors showed reduced gravitropism but an unaltered or an enhanced hydrotropic response. Inhibiting auxin biosynthesis substantially reduced both tropisms in rice and Lotus roots. Removing the final 0.2 mm (including the root cap) from the root tip inhibited gravitropism but not hydrotropism in rice seedling roots. These results suggested that modes of auxin involvement in hydrotropism differed between plant species. In rice roots, although auxin transport and responses were required for both gravitropism and hydrotropism, the root cap was involved in the auxin regulation of gravitropism but not hydrotropism. Hydrotropism in Lotus roots, however, may be regulated by a novel mechanism that is independent of both auxin transport and the TIR1/AFBs auxin response pathway.

Journal of Experimental Botany published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Synthetic Route of 33697-81-3.

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

Das, Somnath published the artcileTeaching Old Compounds New Tricks: DDQ-Photocatalyzed C-H Amination of Arenes with Carbamates, Urea, and N-Heterocycles, Application In Synthesis of 18585-06-3, the publication is Chemistry – A European Journal (2017), 23(72), 18161-18165, database is CAplus and MEDLINE.

The C-H amination of benzene derivatives was achieved using DDQ as photocatalyst and BocNH₂ as the amine source under aerobic conditions and visible light irradiation Electron-deficient and electron-rich benzenes react as substrates with moderate to good product yields. The amine scope of the reaction comprises Boc-amine, carbamates, pyrazoles, sulfonimides and urea. Preliminary mechanistic studies indicate arene oxidation by the triplet of DDQ to radical cations with different electrophilicity and a charge transfer complex between the amine and DDQ as intermediate of the reaction.

Chemistry – A European Journal published new progress about 18585-06-3. 18585-06-3 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Amine,Benzene,Amide, name is Ethyl (4-chloro-3-(trifluoromethyl)phenyl)carbamate, and the molecular formula is C10H9ClF3NO2, Application In Synthesis of 18585-06-3.

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

Jagadeesh, Rajenahally V. published the artcileNitrogen-Doped Graphene-Activated Iron-Oxide-Based Nanocatalysts for Selective Transfer Hydrogenation of Nitroarenes, Recommanded Product: 3-Chloro-4-fluoronitrobenzene, the publication is ACS Catalysis (2015), 5(3), 1526-1529, database is CAplus.

Nanoscaled iron oxides on carbon were modified with nitrogen-doped graphene (NGr) and found to be excellent catalysts for the chemoselective transfer hydrogenation of nitroarenes to anilines. Under standard reaction conditions, a variety of functionalized and structurally diverse anilines, which serve as key building blocks and central intermediates for fine and bulk chems., were synthesized in good to excellent yields.

ACS Catalysis 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, Recommanded Product: 3-Chloro-4-fluoronitrobenzene.

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

Gokanapalli, Anusha published the artcileBenzimidazole bearing Pd-PEPPSI complexes catalyzed direct C2-arylation/heteroarylation of N-substituted benzimidazoles, SDS of cas: 620-20-2, the publication is Applied Organometallic Chemistry (2020), 34(10), e5869, database is CAplus.

A convenient and highly efficient palladium-catalyzed direct C2-arylation/heteroarylation of N-substituted benzimidazole derivatives such as N-benzyl/3-chlorobenzyl/2,4,6-trimethylbenzyl/2,4,6-triisopropylbenzyl/aryl benzimidazoles I (R = H; R¹ = Bn, 4-chlorophenyl, (2,4,6-trimethylphenyl)methyl, etc.) with various aryl/heteroaryl bromides R²Br (R² = Ph, thiophen-3-yl, phenanthren-9-yl, etc.) in the presence of Pd-PEPPSI (palladium-pyridine enhanced pre-catalyst preparation stabilization and initiation) complexes is reported. A series of different sym. and unsym. N,N’-diaralkyl benzimidazole-bearing Pd-PEPPSI complexes II (R = 5-Me, 5,6-dimethyl; R³ = Me, 4-fluorophenyl, (2,4,6-trimethylphenyl)methyl, etc.) was prepared Among all of the prepared complexes, II = (R = 5,6-di-Me, R¹ = R³ = [2,4,6-tris(propan-2-yl)phenyl]methyl) effectively tuned the reaction at a relatively higher rate under mild reaction conditions in an ethanol-water system. In addition, the catalytic process avoids the use of external ligand and additives. Further the reactivity was compared with com. available copper-N-heterocyclic carbene catalyst, but the reaction was less successful. With the optimized reaction conditions, a wide range of 2-aryl/heteroaryl-N-substituted benzimidazoles were synthesized in good to excellent yields via Csp²-H/Csp²-X biaryl cross-coupling.

Applied Organometallic Chemistry published new progress about 620-20-2. 620-20-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 3-Chlorobenzylchloride, and the molecular formula is C7H6Cl2, SDS of cas: 620-20-2.

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

Bakkas, S. published the artcileDifference in behavior of the reactive electrophiles diethyl trichloromethylphosphonate and carbon tetrachloride towards triethyl phosphite, Related Products of chlorides-buliding-blocks, the publication is Phosphorus, Sulfur and Silicon and the Related Elements (2000), 211-224, database is CAplus.

The reaction of tri-Et phosphite with di-Et trichloromethylphosphonate 2b in the absence of solvents and catalysts yields mainly di-Et (1,1-dichloropropyl)phosphonate and di-Et dichloromethylphosphonate. These main products are accompanied by a variety of byproducts which differ considerably from those obtained in the reaction between tri-Et phosphite and CCl₄. Both reactions would begin by a halophilic substitution of tri-Et phosphite on the pos. halogen. For di-Et trichloromethylphosphonate the formed carbanion would then attack preferentially the C β to P⁺ and the H γ to P⁺ on heterophosphonium cation. In contrast, the less sterically hindered trichloromethyl carbanion formed by the halophilic attack of tri-Et phosphite on CCl₄ would rather attack mainly the pos. P⁺ of this cation. The tetra-Et (dichloromethylene)bisphosphonate previously reported by V. P. Kukhar and E. I. Sagina (1979) to be the main product formed in the thermal reaction between tri-Et phosphite and di-Et trichloromethylphosphonate was not found under the authors’ conditions. Its formation only under photochem. irradiation were observed

Phosphorus, Sulfur and Silicon and the Related Elements published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Related Products of chlorides-buliding-blocks.

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

Suslov, Evgenii V. published the artcileNew chemical agents based on adamantane-monoterpene conjugates against orthopoxvirus infections, Computed Properties of 21286-54-4, the publication is RSC Medicinal Chemistry (2020), 11(10), 1185-1195, database is CAplus and MEDLINE.

Currently, the spectrum of agents against orthopoxviruses, in particular smallpox, is very narrow. Despite the fact that smallpox is well controlled, there is, for many reasons, a real threat of epidemics associated with this or a similar virus. In order to search for new low mol. weight orthopoxvirus inhibitors, a series of amides combining adamantane and monoterpene moieties were synthesized using 1- and 2-adamantanecarboxylic acids as well as myrtenic, citronellic and camphorsulfonic acids as acid components. The produced compounds exhibited high activity against the vaccinia virus (an enveloped virus belonging to the poxvirus family), which was combined with low cytotoxicity. Some compounds had a selectivity index higher than that of the reference drug cidofovir; the highest SI = 1123 was exhibited by 1-adamantanecarboxylic acid amide containing the (-)-10-amino-2-pinene moiety. The produced compounds demonstrated inhibitory activity against other orthopoxviruses: cowpox virus (SI = 30-406) and ectromelia virus (mousepox virus, SI = 39-707).

RSC Medicinal Chemistry published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C17H29BO2, Computed Properties of 21286-54-4.

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

Perlikowska, Wieslawa published the artcileOne-pot stereoselective synthesis of (Z)-diethyl α-chlorovinylphosphonates, Application of Diethyltrichloromethylphosphonate, the publication is Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1997), 967-970, database is CAplus.

Di-Et trichloromethylphosphonate, treated with BuLi followed by an aldehyde (or cycloalkenone), was converted to α-chlorovinylphosphonates, e.g. 85% (Z)-PhCH:C(Cl)(PO₃Et₂), via the intermediate formation of a bisphosphonate and a Wadsworth-Emmons olefination. High (Z) stereoselectivity of the reaction is discussed in terms of the conformational preferences of the adducts.

Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Application of Diethyltrichloromethylphosphonate.

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