Nitrochlorination of methyl tricyclo[4.1.0.02,7]heptane-1-carboxylate and phenyl tricyclo[4.1.0.02,7]hept-1-yl sulfone
作者:V. A. Vasin、S. G. Kostryukov、A. V. Semenov、V. V. Razin
DOI:10.1134/s1070428008040106
日期:2008.4
Treatment of methyl tricyclo[4.1.0.0(2,7)]heptane-1-carboxylate and phenyl tricyclo[4.1.0.0(2,7)]hept-1-yl sulfone with a similar to 1:8 mixture of N2O4 and NOCl in diethyl ether at -5 to 0 degrees C gave products of formal anti-addition of NO2Cl at the central C-1-C-7 bond. In the reaction with phenyl tricyclo[4.1.0.0(2,7)]hept-1-yl sulfone nitryl chloride acts as an effective chlorinating agent; as a result, a mixture of diastereoisomeric syn- and anti-6,7-dichlorobicyclo[3.1.1]hept-6-yl phenyl sulfones at a ratio of 7.5: 1 is formed.