Synthesis and Mercury (II) Trifluoroacetate Mediated Cyclization of N-Aryl -Allenylmethyl Carbamide
作者:B. Devan、K. Rajagopalan
DOI:10.1080/00397919408010171
日期:1994.6
three step sequence is described for conversion of substituted phenyl carbamide into 1-cyano-4-methylidene -1,2,3,4-tetrahydro quinoline involving N-propargylation, allene formation followed by mercury (II) trifluoro acetate catalysed cyclization.
A visible-light-induced tandem reaction of allenes with selenesulfonates was developed, providing (E)-2,3-disulfonylpropene derivatives in moderate to good yields. This reaction was featured with simple operation, good regioselectivity and stereoselectivity, and wide functional group tolerance. Photoinduced radical additions via energy transfer were proposed.
开发了一种可见光诱导的丙二烯与硒磺酸盐的串联反应,以中等至良好的产率提供 ( E )-2,3-二磺酰基丙烯衍生物。该反应具有操作简单、区域选择性和立体选择性好、官能团耐受性宽等特点。提出了通过能量转移进行光诱导自由基添加。
v.Braun; Tauber, Justus Liebigs Annalen der Chemie, 1927, vol. 458, p. 106
作者:v.Braun、Tauber
DOI:——
日期:——
Srinivasan; Devan; Shanmugam, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1997, vol. 36, # 2, p. 123 - 125
作者:Srinivasan、Devan、Shanmugam、Rajagopalan
DOI:——
日期:——
Polyfunctional Aliphatic Compounds. V. The Cyclization of Dinitriles by Halogen Acids. A New Synthesis of Imidazoles