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Synthesis 1988; 1988(3): 250-252
DOI: 10.1055/s-1988-27534
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DMPU: An Alternative to HMPT in Moth Sex Pheromone Synthesis

Marie Bengtsson* , Tommy Liljefors
  • *Department of Organic Chemistry 3, Chemical Center, University of Lund, P.O. Box 124. S-221 00 Lund, Sweden
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Publication Date:
20 August 2002 (online)

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1,3-Dimethyl-2-oxo-hexahydropyrimidine (DMPU, or N,N′-dimethylpropyleneurea) is found to be a good substitute for the carcinogenic hexamethylphosphoric triamide (HMPT) as cosolvent in the alkylation of lithium 1-alkynides, key intermediates in moth sex pheromone synthesis.