
Tetrahedron Letters p. 6597 - 6600 (1988)
Update date:2022-08-05
Topics:
Landen, Harald
Margraf, Birgit
Martin, Hans-Dieter
Steigel, Alois
Cycloaddicions of the 3.4-substituted cyclobutenes L, M with diazoalkanes RR'CN2, R = H and R' = H, alkyl, aryl or alkoxycarbonyl excusively yield syn-adducts.Diphenyl-nitrilimine and mesitonitrile oxide mainly undergo anti-addition.
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