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Communication | Regular issue | Vol 6, No. 1, 1977, pp.13-17
Published online, 1st January, 1970
DOI: 10.3987/R-1977-01-0013
The Structure of Alkylation Products of 2-Substituted 3-Methylbenzolines with Meerwein Reagents

kin-ya Akiba,* Yoshio Ohara, and Naoki Inamoto

*Department of Chemistry, Scool of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033


Methylation and ethylation of 2-substituted 3-methylbenzothiazolines with Meerwein reagents gave the corresponding ammonium fluoroborates. The configuration of two methyl groups on nitrogen was assigned, i. e., one at lower field (in NMR) is syn to 2-C-H and the other at higher field is syn to 2-C-R.