I_𝟐-SDS-H_𝟐O System: A highly Efficient Dual Catalytic Green System for Deprotection of Imines and in Situ Preparation of Bis(indolyl)alkanes from Indoles in Water

Table 4

Reaction of 1-azabutadienes with indole (2).

Entry	1-azabutadienes 7 (a–d)	Bis(indolyl)alkane	Time (h)	Yield (%) ^a
a		8	2.5	85
b		8	3.0	83
c		8	3.0	85
d		8	2.4	87

^aIsolated yield.