CAS: 55704-78-4; 2,5-Dimethyl-1,4-Dithiane-2,5-Diol

相似化合物

55704-78-4 40018-26-6 87602-27-5

上下游产品

chloroacetone2-Amino-4-methyl-3-(o-nitrobenzoyl)-thiophen (2-amino-4-methylthiophen-3-yl)(3,4,5-trimethoxyphenyl)methanone 2-amino-4-methylthiophene-3-carboxylic acid methyl ester 2-amino-4-methylthiophene-3-carbonitrile

一氯丙酮置于sodium Hydrogensulfide体系中,化学反应 1.0H,以63 G的收率获得产物2,5-二甲基-2,5-二羟基-1,4-二噻烷
参考文献:2-(n-单取代和n-二取代的氨基)噻唑的新通用合成
标题:2-(n-单取代和n-二取代的氨基)噻唑的新通用合成
摘要:尽管α-巯基酮与氰胺反应反应生成取代的2-氨基噻唑,但收率仅在最简单的情况下才令人满意.然而,通过以下一锅法有效地获得了一系列在环或外氮原子上具有取代基的2-氨基噻唑:通过处理o-乙基s-2反应生成α-巯基酮阴离子的溶液.于20oc的条件下,将二硫代碳酸氧羰基酯与哌啶混合,加入氰胺,并将溶液加热3-6小时.
DOI:10.1039/p19850001623

专利信息

专利号:US-4182719-A
优先权日:1977-05-17
标题 :Synthesis of optically active vitamin E
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:Synthesis of optically active vitamin E from 2-methyl-5-oxotetrahydro-2-furoic acid including intermediates in this synthesis.

专利号:US-4208332-A
优先权日:1977-05-17
标 题:Synthesis of optically active vitamin E
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:Synthesis of optically active vitamin E from 2-methyl-5-oxotetrahydro-2-furoic acid including intermediates in this synthesis.

专利号:US-4208331-A
优先权日:1977-05-17
标 题:Synthesis of optically active vitamin E
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:Synthesis of optically active vitamin E from 2-methyl-5-oxotetrahydro-2-furoic acid including intermediates in this synthesis.

专利号:US-4151177-A
优先权日:1977-05-17
标题:Synthesis of optically active vitamin E
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:Synthesis of optically active vitamin E from 2-methyl-5-oxotetrahydro-2-furoic acid including intermediates in this synthesis.

专利号:US-4189612-A
优先权日:1977-05-17
标题:S-(+) 2,3,6-trimethyl-5-(2,2,4-trimethyl-1,3-dioxolane-4-ethyl)phenol
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:Synthesis of optically active vitamin E from 2-methyl-5-oxotetrahydro-2-furoic acid including intermediates in this synthesis.

专利号:US-4113740-A
优先权日:1977-05-17
标题:Synthesis of optically active vitamin E