1,3-Dimethyl-5-[[2-[2-(4-methylphenyl)ethyl]phenyl]methylidene]-1,3-diazinane-2,4,6-trione 在
scandium tris(trifluoromethanesulfonate) 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 2.0h,
以98%的产率得到1',3'-dimethyl-3-p-tolyl-3,4-dihydro-1H,1'H-spiro[naphthalene-2,5'-pyrimidine]-2',4',6'(3'H)-trione