Table 3.

CDC reaction of tetrahydroisoquinoline with malononitrile

Entry	9, eq	TBHP, eq	Yield of 10, %*	Yield of 11, %*
1	1	1 eq	29	7
2	6	1 eq	46	6
3	1	2 eq	0	36

Tetrahydroisoquinoline (0.1 mmol) was used.

*Isolated yields were based on tetrahydroisoquinoline.