7-(2-Chloro-6-methyl-phenyl)-5-hydroxy-2,3,5,6-tetrahydro-imidazo[1,2-alpha]-imidazole 在
乙醚 、
calcium sulfate 作用下,
以
盐酸 为溶剂,
反应 0.08h,
以leaving 2.9 gm (63% of theory) of slightly impure reaction product的产率得到1-(2-chloro-6-methyl-phenyl)-5,6-dihydro-1
H-imidazo[1,2-
a]imidazole