CAS: 75-27-4; Bromodichloromethane

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CAS号67-66-3 氯仿 | CAS号75-09-2 二氯甲烷 | CAS号463-82-1 新戊烷 | CAS号74-96-4 溴乙烷 | CAS号2648-61-5 2,2-二氯苯乙酮 | CAS号75-25-2 三溴甲烷 | CAS号34557-54-5 methane | CAS号82621-77-0 2,2-dimethyl-N-... | CAS号75-62-7 三氯溴甲烷 | CAS号7647-15-6 溴化钠 | CAS号7647-14-5 氯化钠 | CAS号1605-72-7 dichloromethyle... | CAS号2108-20-5 chloromethylene... | CAS号75-09-2 二氯甲烷 | CAS号124-48-1 二溴一氯甲烷标准溶液 | CAS号18684-82-7 Z-1-chloro-4-(2... | CAS号3510-48-3 Benzaldehyde,4-... | CAS号66482-29-9 (E)-β-bromo-p-c... | CAS号3474-12-2 dichloromethane

📜氯仿置于氢溴酸,氢化铝体系中,化学反应生成 一溴二氯甲烷
参考文献:Production Of Organic Bromides
标题:Production Of Organic Bromides

专利信息

专利号:US-5792892-A
优先权日:1994-04-28
标 题:Processes for preparing aromatic, bromine-containing compounds, novel bromine-containing compounds, and their use as intermediate products in the synthesis of active agents
发明人：HAGEMANN HERMANN
权利人:BAYER AG
摘要:The present invention relates to processes for the preparation of bromine-containing aromatic compounds, to novel bromine-containing compounds and to their use as intermediates in the synthesis of active substances. Processes according to the invention for the preparation of known and novel bromine-containing compounds are characterized by specific conditions.

专利号:US-7767826-B2
优先权日:2007-10-05
标题 :Process for the synthesis of L-(+)-ergothioneine
发明人：TRAMPOTA MIROSLAV
权利人:PHARMATECH INTERNATIONAL INC
摘要:This invention relates to a novel process for the preparation of optically pure L-(+)-ergothioneine. The process for the chemical synthesis of L-ergothioneine comprises steps which consist of reacting L-histidine alkyl ester with an acid halide, chloroformate or pyrocarbonate in the presence of a base, hydrolysis of the alkyl-(S,Z)-2,4,5-triamidopent-4-enoate to obtain a (S)-alkyl 2,5-diamido-4-oxopentanoate, acid catalyzed hydrolysis of the (S)-alkyl 2,5-diamido-4-oxopentanoate followed by reaction with a metal thiocyanate to obtain the thiohistidine, protection of the sulfur of thiohistidine as the tert-butyl thioether, dialkylation of the primary amine to obtain a tertiary amine, quaternization of the tertiary amine, and removal of the protecting group to obtain the desired (S)-3-(2-mercapto-1H-imidazol-5-yl)-2-(trialkylammonio)propanoate (I). This process affords a better yield and is capable of practical application at large scale.

专利号:US-6175009-B1
优先权日:1999-11-18
标题:Process for the preparation of quinazolinones
发明人：CONFALONE PASQUALE NICHOLAS; MAGNUS NICHOLAS ANDREW; STORACE LOUIS
权利人:DU PONT PHARM CO
摘要:The present invention relates generally to an asymmetric synthesis of 4,4-disubstituted-3,4-dihydro-2(1H)-quinazolinones, and intermediates thereof. The target compounds are useful for the treatment of human immunodeficiency virus (HIV) as an inhibitor of reverse transcriptase.

专利号:US-6022977-A
优先权日:1997-03-26
标 题 :Dynamic resolution of isoxazoline thioesters to isoxazoline carboxylic acids
发明人：ZHANG LIN-HUA; ANZALONE LUIGI; PESTI JAAN A; YIN JIANGUO
权利人:DU PONT PHARM CO
摘要:The present invention relates generally to a novel method for preparation of substituted isoxazolin-5-yl acetic acid in high optical purity from a stereoisomeric mixture of an esterified substituted isoxazolin-5-yl acetate. The products are useful in the synthesis of compounds for pharmaceuticals, especially the treatment of thrombolytic disorders, and agricultural products.

专利号:US-8129560-B2
优先权日:2005-08-15
标 题 :Process for the synthesis of mandipropamid and derivatives thereof
发明人：BOWDEN MARTIN CHARLES; CLARK THOMAS AITCHESON; GIORDANO FANNY; JAU BEAT; SCHNEIDER HANS-DIETER; SEIFERT GOTTFRIED; ZELLER MARTIN; FABER DOMINIK; WISS JUERG
权利人:BOWDEN MARTIN CHARLES; CLARK THOMAS AITCHESON; GIORDANO FANNY; JAU BEAT; SCHNEIDER HANS-DIETER; SEIFERT GOTTFRIED; ZELLER MARTIN; FABER DOMINIK; WISS JUERG; SYNGENTA CROP PROT INC
摘要:A process for the preparation of a compound of formula (I), the process comprising: (i) the reaction of a compound of formula (III), with a compound of formula (IV) to give a compound of formula (II), and (ii) the reaction of the compound of formula (II) with a leaving group, to give the compound of formula (I).

专利号:WO-0029391-A1
优先权日:1998-11-19
标题 :Process for the preparation of quinazolinones
发明人：CONFALONE PASQUALE NICHOLAS; MAGNUS NICHOLAS ANDREW; STORACE LOUIS
权利人:DU PONT PHARM CO
摘要:The present invention relates generally to an asymmetric synthesis of 4,4-disubstituted-3,4-dihydro-2(1H)-quinazolinones, and intermediates thereof. The target compounds are useful for the treatment of human immunodeficiency virus (HIV) as an inhibitor of reverse transcriptase.