1,3-dimethyl-5-(2-(1,2,3,4-tetrahydronaphthalen-2-yl)benzylidene)pyrimidine-2,4,6(1H,3H,5H)-trione 在
scandium tris(trifluoromethanesulfonate) 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 5.0h,
以81%的产率得到(4bRS,10bRS)-1',3'-dimethyl-6,10b,11,12-tetrahydro-1'H,4bH-spiro[chrysene-5,5'-pyrimidine]-2',4',6'(3'H)-trione