
Tetrahedron Letters p. 7683 - 7686 (1991)
Update date:2022-08-02
Topics:
Mandai
Ryoden
Kawada
Tsuji
The palladium-catalyzed carbonylation of 4-amino-2-alkynyl carbonates proceeded under mild conditions to afford α-vinylidene-β-lactams in moderate yields. The cyclic phosphite, 4-ethyl-2,6,7-trioxa-1-phosphabicyclo[2,2,2]octane was found to be the best li
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(1992)