α-(o-溴苯胺基)丙烯腈1a-f和2a-e和α-(N-链烯基氨基)-β-(o-溴苯基)丙烷腈7a-c <和8a-c经历钯催化转化为o-(甲基氨基) )苄腈12,邻-[((烯基氨基)乙烯基]苄腈24a-c,N-烯基苯胺26b,26c,3-苯并ze庚因29a,29c,31a和32a,γ-咔啉36和吡咯并[3,2- b ]吲哚45该反应涉及将芳族钯分子内加成到氰基上,以及随后的过程,例如氰基基团的转位,水解,电环化,乙基基团的转移和氧化芳构化。提出了氰基钯催化芳基化的一般机理。
Cyanoacetic Acid as a Masked Electrophile: Transition-Metal-Free Cyanomethylation of Amines and Carboxylic Acids
作者:Hongxiang Wang、Ying Shao、Hao Zheng、Hanghang Wang、Jiang Cheng、Xiaobing Wan
DOI:10.1002/chem.201502733
日期:2015.12.7
Using cyanoaceticacid as a maskedelectrophile, a new cyanomethylation reaction of amines and carboxylicacids was developed, producing a variety of α‐aminonitriles and cyanomethyl esters with good yields and excellent functionality tolerance. This protocol features simple manipulation, inexpensive reagents, and a wide substrate scope. Iodoacetonitrile was generated in situ from the iodination–decarboxylation
作者:Tony Roy、Manikandan Thangaraj、Trinadh Kaicharla、Rupa V. Kamath、Rajesh G. Gonnade、Akkattu T. Biju
DOI:10.1021/acs.orglett.6b02809
日期:2016.10.21
transition-metal-free and mild [2,3] Stevens rearrangement of tertiary allylic amines for the synthesis of functionalized homoallylic amines in moderate to good yield with a broad substrate scope. The key nitrogen ylide intermediate was generated by the N-arylation of allyl amines using arynes. Moreover, the reaction of chiral allyl amines with arynes resulted in the enantiospecific synthesis of homoallylic amines