The Journal of Organic Chemistry

Poly (ethylene glycols) and poly (ethylene glycol)-grafted copolymers are extraordinary catalysts for dehydrohalogenation under two-phase and three-phase …

Y Kimura, SL Regen

Index: Kimura, Yoshikazu; Regen, Steven L. Journal of Organic Chemistry, 1983 , vol. 48, # 2 p. 195 - 198

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Citation Number: 90

Abstract

Poly (ethy1ene glycols)[HO (CH2CH20), H, where n> 31 possess remarkably high activity as catalysts for dehydrohalogenation in organieaqueous hydroxide two-phase systems, relative to classical phase-transfer agents, ie, benzyltriethylammonium chloride and 18-crown-6. The importance of terminal hydroxyl groups together with the abrupt increase in catalyst activity and concentration in the organic layer on going from n= 2 to n= 3 and from n= 3 to n= 4 ...