22455-79-4Relevant articles and documents
Use of 2-Oxazolidinones As Latent Aziridine Equivalents. III. Preparation of N-Substituted Piperazines.
Poindexter, Graham S.,Bruce, Marc A.,LeBoulluec, Karen L.,Monkovic, Ivo
, p. 7331 - 7334 (2007/10/02)
A number of N-aryl and N-alkyl substituted piperazines 1 were prepared from variously substituted 2-oxazolidinone derivatives 3.The method involved treatment of 3 with HBr in glacial acetic acid followed by heating the resulting ring-opened salts 5 in alcoholic solvent.The piperazines 1a-1q were isolated by crystallization in yields ranging from 23-91percent.
