K. Maruyama, T. Tobimatsu, Y. Naruta
1979
Citations
0
Influential Citations
4
Citations
Journal
Bulletin of the Chemical Society of Japan
Abstract
Methylation of 2,2-dimethyl-3,4-dihydro-2H-benzo[h]chromen-6-ol (1) is examined to yield 2,2,3-trimethyl-3,4-dihidro-2H-benzo[h]chromen-6-ol (2). The compound 2 is prepared by Mannich reaction followed by hydrogenative cleavage of the Mannich bases, which are obtained in the reaction with three kinds of amine. Chloromethylation of 1 quantitatively gave a dimer of naphthoquinone methide.