Synthesis of 7-sulfonyl-substituted norpinan-6-ones and -thiones from 1-bromotricyclo[4.1.0.02,7]heptane
作者:V. A. Vasin、D. Yu. Korovin、P. S. Petrov、V. V. Razin、N. V. Somov
DOI:10.1134/s1070428015120052
日期:2015.12
1-Bromotricyclo[4.1.0.02,7]heptane reacted with benzene- and methanesulfonyl thiocyanates in benzene at 20°C via anti addition to the central C1–C7 bicyclobutane bond with formation of 6-endo-bromo-6-exo-thiocyanato-7-syn-(R-sulfonyl)bicyclo[3.1.1]heptanes. Treatment of the benzenesulfonyl thiocyanate adduct with potassium tert-butoxide in THF at 20°C gave 7-endo-(benzenesulfonyl)norpinan-6-one, whereas