β-Cyclodextrin catalyzed synthesis of substituted indoles in aqueous medium

β-Cyclodextrin catalyzed synthesis of indole derivatives from indole, aldehyde and N-methylaniline is reported. The β-cyclodextrin can be recovered and reused without significant loss of catalytic activity, and it is inexpensive, readily available when compared to other cyclodextrins (α, γ)

Simple and straight forward synthesis of 2,4-disubstituted quinazolines in aqueous medium

Efficient synthesis of diverse quinazolines from readily available starting materials was achieved in aqueous medium via one-pot protocol. A number of 2,4-disubstituted quinazolines were prepared in moderate to good yields under mild and catalyst-free conditions. Neutral reaction conditions, easy work-up procedures with wide substrate scope and atom economy are the remarkable features of this method