Alkylphosphonous acid diesters, novel reagents for the oxalimide cyclization to penems

DOI: 10.1016/S0040-4039(00)79085-X

Source and publish data:

Tetrahedron Letters p. 5331 - 5334 (1992)

Update date:2022-08-02

Topics:

Authors:

Budt Budt

Fischer Fischer

Horlein Horlein

Kirrstetter

Lattrell

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Article abstract of DOI:10.1016/S0040-4039(00)79085-X

Alkylphosphonous acid diesters MeP(OR)₂ 3a-b were shown to be highly effective and mild reducing reagents in the oxalimide cyclization of azetidinone-1-oxalyl-4-di or tri-thiocarbonates or 4-thioesters 1a-t forming penems 2a-t at lower temperat

Full text of DOI:10.1016/S0040-4039(00)79085-X

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