Synlett

Continuous-flow processing of gaseous ammonia using a Teflon AF-2400 tube-in-tube reactor: Synthesis of thioureas and in-line titrations

…, M O'Brien, P Koos, PB Cranwell, A Polyzos, SV Ley

Index: Browne, Duncanl.; O'Brien, Matthew; Koos, Peter; Cranwell, Philippa B.; Polyzos, Anastasios; Ley, Steven V. Synlett, 2012 , vol. 23, # 9 p. 1402 - 1406

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Citation Number: 16

Abstract

Abstract A simple tube-in-tube reactor based on the gas-permeable membrane Teflon AF- 2400 was used in the continuous flow reaction of gaseous ammonia with isothiocyanates and one isocyanate. A colourimetric in-line titration technique is also reported as a simple method to quantify the amount of ammonia taken up by the solvent in the system.