Tetrahedron p. 2973 - 2984 (1999)
Update date:2022-08-04
Topics:
Kollenz
Terpetschnig
Sterk
Peters
Peters
Photocyclization of the heterocyclic 2,3-diones 1a-d with electron rich alkenes affords regio- and stereoselectively the 2+2 adducts 2, from 1b with benzophenone as photosensitizer also the Paterno-Buchi adduct 3 is obtained. Similarly, with phenylethyne
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