Ethyl 7-oxo-3-(4-tolyl)-4,5,6,6a,7,8-hexahydro-3H-cyclopenta[b][1,2,4]triazolo[4,3-a][1,5]benzodiazepine-1-carboxylate and ethyl 3-(4-chlorophenyl)-8-methyl-7-oxo-4,5,6,6a,7,8-hexahydro-3H-cyclopenta[b][1,2,4]triazolo[4,3-a][1,5]benzodiazepine-1-carboxylate

A. Aatif, A. Baouid, A. Hasnaoui, A. Benharref, E. H. Alilou and M. Pierrot

Synopsis: The condensation reaction of 1,5-benzodiazepin-2-one with ethyl hydrazono--bromoglyoxylate in the presence of triethylamine is peri and regioselective, as indicated by the structures of the title cycloadducts. Moreover, these structures indicate that the dipole addition occurs in a unique way on the C=N double bond.

Formula: C₂₃H₂₄N₄O₃ and C₂₃H₂₆ClN₄O₃

	Structure factor file (CIF format) (136.8 kbytes) Contains datablock crytal3a
	Structure factor file (CIF format) (118.3 kbytes) Contains datablock crystal3b

To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.

Where possible, images are represented by thumbnails.

Copyright © International Union of Crystallography
IUCr Webmaster