Ia. O'Neil et al., The synthesis of beta-N-tosylamino hydroxylamines via the ring opening of N-tosylaziridines and their use in reverse Cope cyclisations, TETRAHEDR L, 42(46), 2001, pp. 8243-8245
N-Tosylated aziridines have been found to undergo high yielding and regiose
lective ring opening with hydroxylamines in diethyl ether in the presence o
f boron trifluoride diethyl ether complex to give beta -N-tosylamino hydrox
ylamines. Suitable substrates were shown to undergo reverse-Cope cyclisatio
ns to give amino functionalised pyrrolidine and piperidine N-oxides. (C) 20
01 Published by Elsevier Science Ltd.