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Bis(diisopropylamino)cyclopropenimine-substituted bis-protonated proton sponge (BDC) is a useful phase-transfer catalyst for the alkylation of compound (I) with a range of alkyl halides.
The use of a bis(diisopropylamino)cyclopropenimine substituted bis-protonated proton sponge as a bifunctional phase transfer catalyst is reported. Experimental studies and DFT calculations suggest it operates simultaneously as a hydrogen bond donor and a phase transfer catalyst, facilitating the movement of charged intermediates from the interface...
Herein we report the synthesis and theoretical investigation of a non-symmetric bis(diisopropylamino)cyclopropenimine (DAC) functionalized proton sponge derivative, coined the 'Janus' sponge. The reported sponge was isolated as a monoprotonated salt, though no intramolecular hydrogen bond was observed. Homodesmotic equations supported the absence o...