Chemistry Letters

Synthesis of Oxazepinones from Vinyloxiranes and Chlorosulfonyl Isocyanate.

J Daniel, D Shukla, DN Dhar

Index: Daniel, Joseph; Shukla, Deepti; Dhar, Durga Nath Chemistry Letters, 1992 , # 8 p. 1575 - 1578

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Citation Number: 2

Abstract

1W6 GmeUyLdmm,1992 lH—chemical shifts for these heterocyclic ring protons lie in the vinyl proton region (6 4.50 - 6.80) due to their non—planar polyene character. However, the relative stabilities of the two boat conformations and the lH—chemical shift values of the ring protons of these heterocycles depend very much on the nature and position of the substituents, heteroatoms. and the exocyclic double bonds present in the ring structure. In the present ...