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 1

Optimization of the reaction conditions^a.

Entry	Reagent system	Time (h)	Yields^b (%)
1	I2-SDS-H2O	3.5	93
2	I2-Triton X-H2O	7.0	74
3	I2-Aliquat 336-H2O	8.0	72
4	I2-CTAB-H2O	6.3	69
5	No catalyst	24.0	—

^aThe reactions were carried out using 1 mmol of 1,4-diphenyl-2,3-diaza-1,3-butadiene (1a) with 4 mmol of indole (2a) in presence of 15 mol% of I₂ and 0.02 g of surfactant.
^bIsolated yield.