Re(I)-catalyzed hydropropargylation of enamides: a useful method for the preparation of 4-pentynylamine derivatives
作者:Shoya Watanabe、Akane Ario、Nobuharu Iwasawa
DOI:10.1038/s41429-019-0162-3
日期:2019.6
complex intermediate, followed by intramolecular hydrogen transfer to the iminium carbon. This method is useful for the synthesis of 4-pentynylamine derivatives from enamides and easily available propargyl ether. Moreover, tandem cyclization reaction was achieved to afford a pyrrolidine derivative in a single operation by using a secondary enamide.
Zezza, Charles A.; Kwon, Tae Woo; Sheu, JennLine, Heterocycles, 1992, vol. 34, # 7, p. 1325 - 1342
作者:Zezza, Charles A.、Kwon, Tae Woo、Sheu, JennLine、Smith, Michael B.
DOI:——
日期:——
ZEZZA CH. A.; SMITH M. B., SYNTH. COMMUN., 17,(1987) N 6, 729-740
作者:ZEZZA CH. A.、 SMITH M. B.
DOI:——
日期:——
Zezza, Charles A.; Smith, Michael B., Synthetic Communications, 1987, vol. 17, # 6, p. 729 - 740
作者:Zezza, Charles A.、Smith, Michael B.
DOI:——
日期:——
Contra-Thermodynamic Positional Isomerization of Olefins
作者:Kuo Zhao、Robert R. Knowles
DOI:10.1021/jacs.1c11681
日期:2022.1.12
affords an isomerized and less thermodynamically stable alkene product. The higher oxidation potential of the less substituted olefin isomer renders it inert to further oxidation by the excited-state oxidant, enabling it to accumulate in solution over the course of the reaction. A broad range of isopropylidene substrates are accommodated, including enol ethers, enamides, styrenes, 1,3-dienes, and tetrasubstituted