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Reactions of a,ß‐unsaturated N ‐benzenesulfonyl Imine – N ‐[(2 E )‐3‐phenyl‐2‐propen‐1‐ylidene]benzenesulfonamide with Methyllithium
Author(s) -
Lee GonAnn,
Lee HsinYi,
Chen WeiCheng,
Lin YenHuei
Publication year - 2015
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201500082
Subject(s) - chemistry , methyllithium , adduct , imine , medicinal chemistry , derivative (finance) , benzothiazine , stereochemistry , organic chemistry , catalysis , financial economics , economics
α , β ‐Unsaturated N ‐benzenesulfonyl imine 1 was treated with 1.1 eq methyllithium to afford 1,2‐addition adduct as a sole product. However, when compound 1 was treated with 2 eq MeLi, 1,2‐addition product, benzenesulfonamide derivative 3 and 2 H ‐1,2‐benzothiazine 1,1‐dioxide derivatives 4 and 5 were isolated.