CAS: 124-48-1; Chlorodibromomethane

上下游产品

CAS号127-09-3 乙酸钠 | CAS号67-66-3 氯仿 | CAS号75-25-2 三溴甲烷 | CAS号74-87-3 氯甲烷 | CAS号34557-54-5 methane | CAS号142-28-9 1,3-二氯丙烷 | CAS号627-30-5 3-氯-1-丙醇 | CAS号41036-93-5 α-bromo-α-chlor... | CAS号75-27-4 一溴二氯甲烷标准溶液 | CAS号125013-86-7 (1R,4S,4aR,8aS)... | CAS号125013-87-8 (1R,4S,4aR,8aS)... | CAS号542-92-7 环戊二烯 | CAS号108-90-7 氯苯 | CAS号119-64-2 1,2,3,4-四氢萘(THN) | CAS号83692-65-3 (11R,6S)- and (... | CAS号83692-67-5 anti-11-chlorob... | CAS号826-73-3 1-苯并环庚酮 | CAS号83692-66-4 anti-6-chlorome... | CAS号83692-63-1 cis-tricyclo[5....

📜氯甲烷置于pumice Stone,溴体系中,化学反应生成氯二溴甲烷
参考文献:Besson,Chemische Berichte,25 Ref. <1892>,15
标题:Besson,Chemische Berichte,25 Ref. <1892>,15

专利信息

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.

专利号:US-8563760-B2
优先权日:2009-08-31
标 题:Process for the synthesis of long-chain fatty acids
发明人：FAUQ ABDUL H; EDWARDS ALBERT O
权利人:FAUQ ABDUL H; EDWARDS ALBERT O; MAYO FOUNDATION
摘要:This invention relates to processes for preparing long-chain fatty acids of Formula I: n nand salts thereof, as well as intermediates for the processes, wherein L 1 and L 2 are described herein.