Unusual reactions of magnesium indolates with benzenesulfonyl chloride
E Wenkert, PDR Moeller, SR Piettre…
Index: Wenkert, Ernest; Moeller, Peter D. R.; Piettre, Serge R.; McPhail, Andrew T. Journal of Organic Chemistry, 1987 , vol. 52, # 15 p. 3404 - 3409
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Citation Number: 24
Abstract
Grignard reagents from N-unsubstituted indoles and benzenesulfonyl chloride undergo reaction such as to produce unstable intermediates of@-chlorination and a-sulfonylation, which are transformed into oxindoles or substituted indoles. In the same reaction, yuehchukene (the naturally occurring dehydroprenylindole dimer) is converted into a spirooxindole, containing a strained four-membered ring, which is changed into a ...
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[Wenkert, Ernest; Angell, E. Charles; Ferreira, Vitor F.; Michelotti, Enrique L.; Piettre, Serge R.; et al. Journal of Organic Chemistry, 1986 , vol. 51, # 12 p. 2343 - 2351]
[Wenkert, Ernest; Angell, E. Charles; Ferreira, Vitor F.; Michelotti, Enrique L.; Piettre, Serge R.; et al. Journal of Organic Chemistry, 1986 , vol. 51, # 12 p. 2343 - 2351]