The pentafluorophenylation of beta-aminoacrylates with (C6F5)(3)SiF in the presence of an alcohol and Me3SiCl furnishing derivatives of beta-amino acids bearing the C6F5 group has been developed.
Reaction of β-amino-α,β-unsaturated esters and amides with aryl diazonium salts
作者:C.B. Kanner、U.K. Pandit
DOI:10.1016/s0040-4020(01)98868-4
日期:1981.1
Conjugated esters and amides react with aryldiazoniumsalts at room temperature (MeCN) to form the corresponding iminium hydrazone derivatives, which can be thermally cyclized to cinnoline-3-esters and cinnoline-3-amides. In general the intermediate iminium salts derived from the enamine amides cyclize faster than those from the enamine esters. Furthermore, the ease of cyclization depends upon the
Consecutive Three‐Component Coupling‐Addition Synthesis of β‐Amino Enoates and 3‐Hydroxypyrazoles via Ethyl 3‐Arylpropiolates
作者:Jonas Niedballa、Guido J. Reiss、Thomas J. J. Müller
DOI:10.1002/ejoc.202000823
日期:2020.8.23
Two consecutive three‐component syntheses furnishing β‐amino enoates or 3‐hydroxypyrazoles in a one‐pot fashion based upon the Sonogashira alkynylation of aryl iodides and ethyl propiolate were established in mostly excellent yields.
作者:Vitalij V. Levin、Alexander D. Dilman、Pavel A. Belyakov、Alexander A. Korlyukov、Marina I. Struchkova、Vladimir A. Tartakovsky
DOI:10.1016/j.mencom.2007.03.018
日期:2007.3
The pentafluorophenylation of beta-aminoacrylates with (C6F5)(3)SiF in the presence of an alcohol and Me3SiCl furnishing derivatives of beta-amino acids bearing the C6F5 group has been developed.