Conjugate Hydrocyanation of Chalcone Derivatives Using Ethyl Cyanoacetate as an Organic Cyanide Source
作者:Zheng Li、Junjun Yin
DOI:10.1002/cjoc.201600860
日期:2017.7
The conjugate hydrocyanation of chalcone derivatives using ethyl cyanoacetate as an organic cyanide source at room temperature under open air and transition metal‐free conditions was described. The protocol has advantages of using relatively cheap, less toxic, stable and easy‐to‐handle cyanating reagent, high yield, and mild reaction condition.
Microwave assisted synthesis of dihydropyridazin-3(2H)-ones and the subsequent dehydrogenation using seleniumdioxide are described.
微波辅助合成 dihydropyridazin-3(2H)-ones 和随后使用二氧化硒脱氢。
Conjugate Hydrocyanation of Aromatic Enones Using Potassium Hexacyanoferrate(II) as an Eco-Friendly Cyanide Source
作者:Zheng Li、Chenhui Liu、Yupeng Zhang、Rongzhi Li、Ben Ma、Jingya Yang
DOI:10.1055/s-0032-1317179
日期:——
A selective conjugate hydrocyanation of aromatic enones by a one-pot, two-step procedure usingpotassiumhexacyanoferrate(II) as an original eco-friendlycyanidesource, potassium hydroxide as a base, and benzoyl chloride as a promoter was described. This protocol has the advantages of a nontoxic cyanidesource, high yield, and simple workup procedure.
描述了使用六氰基高铁酸钾 (II) 作为原始环保氰化物源、氢氧化钾作为碱和苯甲酰氯作为促进剂,通过一锅两步法选择性共轭氢氰化芳族烯酮。该协议具有无毒氰化物源、高产率和简单后处理程序的优点。