英语翻译Abstract:Thiolysis of a variety of 1,2-epoxides in water at30 °C and pH 7.0 is strongly accelerated by ZnCl2 (10 mol%) except when amino- and carboxythiophenol are used.Theaqueous medium and the catalyst were recovered and reusedin vario

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/06 06:22:13
英语翻译Abstract:Thiolysis of a variety of 1,2-epoxides in water at30 °C and pH 7.0 is strongly accelerated by ZnCl2 (10 mol%) except when amino- and carboxythiophenol are used.Theaqueous medium and the catalyst were recovered and reusedin vario

英语翻译Abstract:Thiolysis of a variety of 1,2-epoxides in water at30 °C and pH 7.0 is strongly accelerated by ZnCl2 (10 mol%) except when amino- and carboxythiophenol are used.Theaqueous medium and the catalyst were recovered and reusedin vario
英语翻译
Abstract:Thiolysis of a variety of 1,2-epoxides in water at
30 °C and pH 7.0 is strongly accelerated by ZnCl2 (10 mol
%) except when amino- and carboxythiophenol are used.The
aqueous medium and the catalyst were recovered and reused
in various runs without affecting the efficiency of the process.
Introduction
The â-hydroxysulfide unit is present in compounds of
biological and pharmacological interest1 and is a versatile
moiety for synthesizing allylic alcohols,benzoxathiepines,
benzotiazepines,R-thioketones,R-substituted
R,â-unsaturated enones,and â-hydroxysulfoxides used
in the synthesis of naturally occurring compounds.
The easiest access to â-hydroxysulfides is the thiolysis
of 1,2-epoxides that is usually carried out in organic
solvents (THF,CH2Cl2,MeOH,MeCN,or PhH) by using
thiols under basic conditions8 or in the presence of
promotors and/or catalysts

英语翻译Abstract:Thiolysis of a variety of 1,2-epoxides in water at30 °C and pH 7.0 is strongly accelerated by ZnCl2 (10 mol%) except when amino- and carboxythiophenol are used.Theaqueous medium and the catalyst were recovered and reusedin vario
摘要:一1,2环氧化物水在各种Thiolysis
30 ° C和pH值7.0的强烈加速氯化锌(10摩尔
%)除非氨基酸和carboxythiophenol使用.该
水相介质及催化剂的回收和再利用
在各种运行而不会影响该过程的效率.
介绍
该A - hydroxysulfide单位目前的化合物
生物及药理interest1,是通用
基团合成烯丙醇,benzoxathiepines,
 benzotiazepines,的R - thioketones,研究取代
R是不饱和enones,和A - hydroxysulfoxides使用
在天然化合物的合成.
最简单的访问,hydroxysulfides是thiolysis
1,2,也就是通常进行了环氧有机
溶剂(四氢呋喃,二氯甲烷,甲醇,乙腈,或心理健康热线)通过使用
硫醇在碱性conditions8或存在的
助剂和/或催化剂

摘要:Thiolysis一个1,2环氧化物在水中品种在30℃,pH值7.0的强烈加速氯化锌(10 mol%的除外)时,氨基酸和carboxythiophenol使用。在水相介质及催化剂的回收和重复使用在各种运行而不会影响该进程的效率。引进的A - hydroxysulfide单位在生物及药理interest1,是合成烯丙醇,benzoxathiepines多功能基团,benzotiazepines...

全部展开

摘要:Thiolysis一个1,2环氧化物在水中品种在30℃,pH值7.0的强烈加速氯化锌(10 mol%的除外)时,氨基酸和carboxythiophenol使用。在水相介质及催化剂的回收和重复使用在各种运行而不会影响该进程的效率。引进的A - hydroxysulfide单位在生物及药理interest1,是合成烯丙醇,benzoxathiepines多功能基团,benzotiazepines,的R - thioketones,研究取代R是不饱和化合物enones目前,和A - hydroxysulfoxides在使用合成的天然化合物。最简单的访问,hydroxysulfides是1,2,也就是通常进行(四氢呋喃,二氯甲烷,甲醇,乙腈,或心理健康热线下使用基本conditions8或在助剂和存在硫醇)有机溶剂进行环氧thiolysis /或催化剂

收起

pig

摘要:一水Thiolysis各种1,2 -环氧化合物在30 ° C和pH值7.0的强烈加速氯化锌(10 mol%的除外)时,氨基酸和carboxythiophenol使用。在水介质和催化剂的回收和再利用运行在各不影响效率的过程。介绍的A - hydroxysulfide单位是目前化合物的生物及药理interest1,是一个,benzotiazepines多功能基团的合成烯丙醇,benzoxathi...

全部展开

摘要:一水Thiolysis各种1,2 -环氧化合物在30 ° C和pH值7.0的强烈加速氯化锌(10 mol%的除外)时,氨基酸和carboxythiophenol使用。在水介质和催化剂的回收和再利用运行在各不影响效率的过程。介绍的A - hydroxysulfide单位是目前化合物的生物及药理interest1,是一个,benzotiazepines多功能基团的合成烯丙醇,benzoxathiepines,的R - thioketones,研究取代R是不饱和enones,和A - hydroxysulfoxides化合物用于合成自然发生的。最简单的访问,hydroxysulfides是有机thiolysis的1,2 -环氧通常是进行了溶剂(四氢呋喃,二氯甲烷,甲醇,乙腈,或心理健康热线和)由助剂使用硫醇在碱性conditions8或存在的/或催化剂
有个别的不知道如何翻译,用单词表示了

收起

英语翻译abstract purification Abstract是什么意思 abstract是什么? 英语翻译1楼不对,它是在结尾时出现的,摘要位于开头,是abstract abstract-collision是什么意思?此时abstract是什么词性? 英语翻译Modern group theory,a very active part of the mathematical discipline abstract algebra studies groups in their own right. Alerting Abstract是什么意思 abstract from的意思 Graphical Abstract是什么意思 conference-abstract是什么意思 ABSTRACT II是什么 abstract submission deadline是什么意思 英语翻译Abstract Expressionism for salePeople still buy Abstract Expressionist art today.They mainly buy reproductions on postcards,posters,prints,and calendars,when they visit art galleries and exhibitions.However,home furnishing stores also sel 英语翻译Paul Cezanne,French painter,often called the father of modern art,who strove to develop an ideal synthesis of naturalistic representation,personal expression,and abstract pictorial order. 英语翻译The choice of theme hotels and theme to create a cultural atmosphere Abstract:The theme from one of the few domestic hotel business ... 英语翻译although an abstract should be brief in form,usually confined to a single paragraph of running text.这句中的running text如何翻译? abstract的中文意思是 英语翻译为什么英语翻译会出单词本身没有的意思比如 the film abstract a large audience 中的 abstract 请帮我解释下这个单词吧 这个单词是抽象的一样 但句子是这个电影吸引了很多观众 这个心音是