ketaler of 4 - (1-hydroxy-1-methylethyl) - 3 - cyclohexene - 1 - on to anvendning as intermediate product for framstellning of 6a, 10a, cis - 1 - hydroxy - 3 - substituted - 6,6 dimethyl 6,6a, 7,8,10,10a - hexahydro-1,3,5-trinitro-1,3,5-triazine - 9h dibenzo (b, d) pyran - 9 - regions

摘要

Reaction of a 5-substituted resorcinol with a ketal of 4-(1-hydroxy-1-methylethyl)-3-cyclohexen-1-one in the presence of a suitable catalyst effects condensation to provide substantially exclusively a cis-1-hydroxy-3-substituted-6-6-dimethyl-6,6a,7,8,10,10a-hexahydro-9H- dibenzo[b,d]pyran-9-one.