Tetrahedron p. 4777 - 4786 (1988)
Update date:2022-08-04
Topics:
Takahata, Hiroki
Suzuki, Toshiaki
Maruyama, Mihoko
Moriyama, Keiko
Mozumi, Mayumi
et.al.
Iodine-induced cyclization of γ,δ-unsaturated secondary thioamides 1 proceeded regio- (5-exo-trigonal) and chemo- (sulfur-carbon bond formation)selectively, providing iminothiolactones 2, which were converted in two-step sequences (dehydroiodination and N-acetylation) into 2-acetoamidothiophenes 4.This procedure was performed in one flask to afford polysubstituted 2-aminothiophenes.
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