ISSUE 1

ISSUE 2

ISSUE 3

ISSUE 4

ISSUE 5

ISSUE 6

ISSUE 7

ISSUE 8

ISSUE 9

ISSUE 10

ISSUE 11

ISSUE 12

ISSUE 10

Year 2007, Month 10 (Section Full Articles, Page 2089)

Synthesis and structure of azido- and amino-substituted dibenzoxazepinones

A. V. Samet, K. A. Kislyi, V. N. Marshalkin, Yu. A. Strelenko, Yu. V. Nelyubina, K. A. Lyssenko, and V. V. Semenov

1,3-Dinitro[b, f ][1,4]dibenzоxazepin-11(10H)-one enters nucleophilic substitution reactions with N-nucleophiles, azide ion preferably replacing the nitro group in position 3, whereas amines the one in position 1. Structures of the substitution products were confirmed by X-ray diffraction and ¹Н NMR NOE spectroscopy. The selectivity observed in the reaction with amines was supposed to be caused by the stabilization of the intermediate σ-complex with the NH...O intramolecular hydrogen bond.

BACK   I wish to order PDF file of this article for 25.00 USD