Vn. Pathak et al., SYNTHESIS OF SOME NEW 1,3-BIS [3-(ARYL)-5-(ARYL) PYRAZOL-1-YL] PROPANES AND 1,3-BIS [2-(ARYL) INDOL-1-YL] PROPANES VIA PHASE-TRANSFER CATALYSIS, Indian Journal of Heterocyclic Chemistry, 6(4), 1997, pp. 323-324
1,3-Bis [3-(aryl)-5-(aryl) pyrazol-1-yl] propanes (2a-i) and 1,3-bis [
2-(aryl) indol-1-yl] pro panes (4a,b) were prepared from appropriate 4
,5dihydropyrazoles(1a-i) and 2-arylindoles (3a,b) respectively, via li
quid-liquid phase transfer catalysis (PTC) using tetra-n-butylammonium
hydrogen sulphate. Benzene was used as the organic phase and 50% KOH
as the aq phase. The proposed structures for the products are establis
hed on the basis of spectral (IR, PMR, Mass) and analytical data.