N,N-二甲基苄胺催化合成丙烯酸间苯二酚环氧酯的机理

Ｎ，Ｎ－二甲基苄胺催化合成丙烯酸间苯二酚环氧酯的机理高俊刚，王洪芳，袁翠红（河北大学化学系，保定０７１００２）关键词丙烯酸间苯二酚环氧酯，Ｎ，Ｎ－二甲基苄胺，催化反应机理不饱和酸环氧酯是由不饱和核酸与环氧化合物进行环氧化反应形成的一种化合物，它在涂料...     

PHOSPHORUS-NITROGEN COMPOUNDS. PART 52.1 THE SYNTHESIS OF SOME 1,3,2-BENZODIAZAPHOSPHORINE 2-OXIDES AND 2-SULPHIDES

Abstract

The reactions of 4-methyl-2-[N-(p-toluidinyl)methyl]aniline with phosphorus oxychloride, thiophosphoryl chloride, and their derivatives yield 1,3,2-benzodiazaphosphorine 2-oxides and 2-sulphides. Their ¹H NMR and infrared spectra are discussed. Related 1,3,2-benzodiazophosphorine and 1,3,2-dibenzodiazaphosphocine 2-oxides and 2-sulphides are compared.     

A SIMPLE AND CONVENIENT ONE-POT SYNTHESIS OF FATTY ACID ESTERS FROM HINDERED ALCOHOLS USING N,N-DIMETHYLCHLORO-SULFITEMETHANIMINIUM CHLORIDE AS DEHYDRATING AGENT

ABSTRACT

N,N-Dimethylchlorosulfitemethaniminium chloride (SOCl₂-DMF) has been found to be an efficient reagent for one-pot synthesis of esters from equimolar amounts of fatty acids and hindered alcohols under mild conditions.     

在Cu—Zn—Al—Ti—K催化剂上合成低碳混合醇的反应网络结构

用动力学方法系统地考察了在Cu-Zn-Al-Ti-K催化剂上合成低碳混合醇的反应网络结构,在此基础上提出了较完整的反应网络构造图。研究结果表明,甲醇是由CO加H_2和CO_2加H_2两条途径生成的,其它醇是从甲醇出发经过碳链增长过程生成的。甲烷是CO和H_2反应的产物,其它烃经由甲烷按碳链增长方式产生,其中乙烷也可能经乙醇产生。在经过很短的一段反应时间之后,就发生了逆变换向变换反应的转变,变换反应起了向CO_2加H_2合成甲醇这一途径提供反应物CO_2的作用。     

A simple method for synthesis of 5-CF3 substituted dienamides via rearrangement of 2H-pyran derivatives

A simple and novel method for synthesis of 5-trifluoromethyl 2,4-dienamides with up to 95% yield under mild condition was first reported. With α,α-dicyanoalkenes and trifluoromethylketones as starting materials, the vinylogous aldol reaction was introduced and then followed by rearrangement of the 2H-pyran intermediate.