Investigation of the reactivities and tautomerism of azolidines. 53. Synthesis of 5-arylidene-2-allylamino-?2-thiazolin-4-ones and 5-arylidene-2-imino-3-allylthiazolidin-4-ones
Volkova, A. A.; V'yunov, K. A.; Ginak, A. I., Journal of Organic Chemistry USSR (English Translation), 1980, vol. 16, p. 114 - 116
作者:Volkova, A. A.、V'yunov, K. A.、Ginak, A. I.、Ramsh, S. M.、Sochilin, E. G.
DOI:——
日期:——
Ginak,A.I. et al., Journal of Organic Chemistry USSR (English Translation), 1970, vol. 6, p. 1747 - 1749
作者:Ginak,A.I. et al.
DOI:——
日期:——
Enantioselective synthesis of 7H-pyrano[2,3-d]thiazoles via squaramide-catalyzed [2+4] annulation of malononitrile and 5-ylidenethiazol-4-ones
作者:Lei Cui、Youming Wang、Zhenghong Zhou
DOI:10.1016/j.tetasy.2016.08.014
日期:2016.11
An efficient catalytic asymmetric synthesis of 7H-pyrano[2,3-d]thiazoles has been developed on the basis of the organocatalyzed [4+2] annulation of malononitrile and 5-ylidenethiazol-4-ones. Under the catalysis of a bifunctional squaramide derived from L-tert-leucine, the reaction of malononitrile and a wide range of 5-ylidenethiazol-4-ones ran smoothly to afford the corresponding structurally diverse 7H-pyrano[2,3-d]thiazole derivatives in good yields (70-94%) and with moderate to excellent enantioselectivities (43->99% ee). (C) 2016 Elsevier Ltd. All rights reserved.
Volkova, A. A.; V'yunov, K. A.; Ginak, A. I., Journal of Organic Chemistry USSR (English Translation), 1980, vol. 16, p. 117 - 119
作者:Volkova, A. A.、V'yunov, K. A.、Ginak, A. I.、Ramsh, S. M.、Sochilin, E. G.
DOI:——
日期:——
Ginak, A. I.; Rubleva, O. G.; Dymshits, V. A., Russian Journal of Organic Chemistry, 1990, vol. 26, # 6, p. 1184