Mimics of a R22 (8) Hydrogen??Bond Dimer Motif: Synthesis and Influence on the Crystallisation of Sulfathiazole and Sulfapyridine

SE Lawrence, MT McAuliffe…

Index: Lawrence, Simon E.; McAuliffe, Marie T.; Moynihan, Humphrey A. European Journal of Organic Chemistry, 2010 , # 6 p. 1134 - 1141

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Citation Number: 2

Abstract

Abstract The bis [4-(hydroxyamino) phenylsulfonyl] piperazine 5, diketopiperazine 10 and benzene 14 were synthesised as mimics of an R 2 2 (8) motif, which occurs in one crystal polymorph of sulfathiazole and in several polymorphs of sulfapyridine. When present in crystallisations of sulfathiazole and sulfapyridine, these mimics were found to have little or no effect under crystallisation conditions that favour the formation of polymorphs not ...