A Novel Fused Phosphorus Heterocycle: 4-(1',2',3',4-Tetrahydro-1, 3, 2-benzodiazaphosphorin-2'-sulfide)-3, 4b, 4a-thiazphosphaphenanthridine Derivative

摘要

The first example of fused phosphorus heterocyclic 4-[1-(b-bromoethyl)-4-oxo-3-prop yl-1, 2, 3, 4-tetrahydro-1, 3, 2-benzodiazaphosphorin-2-sulfide]-1, 2, 3, 4, 4a, 4b, 5, 6-octahydro -6-oxo-5-propyl-3, 4b, 4a-thiazphosphaphenanthridine 4a, 2-dioxide was synthesized in excellent yield by refluxing a mixture of 1-(2-bromoethyl)-2, 3-dihydro-3-propyl-1, 3, 2-benzodiazaphos phorin-4(1H)-one 2-oxide with carbon disulfide in benzene in the presence of triethylamine.