反应详情

Following the procedure of step B of Example 1 , the above 3'-(4-pyridyl)-spiro[1,2,3,4-tetrahydronaphthalene-2,2'-oxirane]-1-one is treated with hydrazine to yield 4,5-dihydro-3-(4-pyridyl)-2H-naphtho[ 1,2-c]pyrazole.