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Heteroannulation through Copper Catalysis: A Novel Cyclization Leading to a Highly Regio- and Stereoselective Synthesis of 2-Substituted Benzothiazolines
作者:Bidisha Nandi、Nitya G. Kundu
DOI:10.1021/ol990165g
日期:2000.2.1
3-(2-Aminophenylthio)prop-1-yne 8 reacted with aryl iodides 9-18 under palladium-copper catalysis leading to the disubstituted alkynes 19-28 which after tosylation underwent a novel cyclization under copper catalysis to 2-substituted benzothiazolines 29-38. The expected 3-(arylidine)-2,3-dihydrobenzothiazines were not obtained.
[反应:参见文本] 3-(2-氨基苯硫基)丙-1-炔8在钯-铜催化下与芳基碘化物9-18反应,生成二取代炔烃19-28,在甲苯磺酸作用下,该取代基在铜催化下经历了新型环化反应2-取代的苯并噻唑啉29-38。没有获得预期的3-(芳基)-2,3-二氢苯并噻嗪。
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Bruche, Luca; Garanti, Luisa; Zecchi, Gaetano, Journal of the Chemical Society. Perkin transactions I, 1984, # 11, p. 2535 - 2539
作者:Bruche, Luca、Garanti, Luisa、Zecchi, Gaetano
DOI:——
日期:——
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BRUCHE, L.;GARANTI, L.;ZECCHI, G., J. CHEM. SOC. PERKIN TRANS., 1984, N 11, 2535-2539
作者:BRUCHE, L.、GARANTI, L.、ZECCHI, G.
DOI:——
日期:——
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TSUGE O.; UENO K.; INABA A., HETEROCYCLES 1976, 4, NO 1, 1-7
作者:TSUGE O.、 UENO K.、 INABA A.
DOI:——
日期:——
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Bruche, Luca; Garanti, Luisa; Zecchi, Gaetano, Journal of Heterocyclic Chemistry, 1982, vol. 19, p. 905 - 907
作者:Bruche, Luca、Garanti, Luisa、Zecchi, Gaetano
DOI:——
日期:——