A Convenient One-Pot Synthesis of Cyclohexenic Primary Amines
作者:Francis Barbot、Mohand Aidene、Léone Miginiac
DOI:10.1080/00397919808004433
日期:1998.9
Abstract The reaction between Grignard reagents prepared from allylic or propargylic halides and the N-phenylsulfenimine derived from the heptane-2,6-dione affords primary 1-alkenyl (or alkynyl)-3-methylcyclohex-2-enamines in good yields.
Synthesis of α,β-Unsaturated Amidines through Gold-Catalyzed Intermolecular Reaction of Azides with Ynamides
作者:Peng-Peng Ruan、Hang-Hao Li、Xin Liu、Te Zhang、Shao-Xuan Zuo、Chunyin Zhu、Long-Wu Ye
DOI:10.1021/acs.joc.7b01689
日期:2017.9.1
and flexible synthesis of α,β-unsaturated amidines via gold-catalyzed intermolecular ynamide amination/carbene 1,2-shift between ynamides and benzylic azides has been developed. Under mild reaction conditions, various α,β-unsaturated amidines were obtained in mostly good yields, thus providing an efficient and atom-economic way for the construction of valuable α,β-unsaturated amidines.
Organocatalytic Enantioselective Conia‐Ene‐Type Carbocyclization of Ynamide Cyclohexanones: Regiodivergent Synthesis of Morphans and Normorphans
作者:Yin Xu、Qing Sun、Tong‐De Tan、Ming‐Yang Yang、Peng Yuan、Shao‐Qi Wu、Xin Lu、Xin Hong、Long‐Wu Ye
DOI:10.1002/anie.201908495
日期:2019.11.4
ynamide cyclohexanones, representing the first metal-free asymmetric Conia-ene-type carbocyclization. This method allows the highly efficient and atom-economical construction of a range of valuable morphans with wide substrate scope and excellent enantioselectivity (up to 97 % ee). In addition, such a cycloisomerization of alkylsulfonyl-protected ynamide cyclohexanones can lead to the divergent synthesis