75136-53-7Relevant academic research and scientific papers
Titanium(IV) chloride induced reactions of ketones and C-acylimines with dimethylcyanamide
Mazik, Monika,Boese, Roland,Sustmann, Reiner
, p. 1665 - 1671 (2007/10/03)
The reactions of ketones (benzophenone, 4-methylbenzophenone, acetophenone, acetone, and 2,2,4,4-tetramethyl-3-pentanone) and C-acylimines with dimethylcyanamide in the presence of titanium(IV) chloride were investigated. Benzophenone and 4-methylbenzophenone react with dimethylcyanamide to give 4,4-disubstituted 2-dimethylamino-3-aza-1-oxa-1,3-butadienes 5 and 4,4-disubstituted 2-dimethylanuno-1-N,N-dimethylcarbamoyl-1,3-diaza-1,3-butadienes 9. Ketones with enolizable hydrogen atoms undergo aldol reactions under these conditions. C-Acylimines 11b-11e, derived from benzil and substituted anilines, undergo [2 + 2] cycloaddition to dimethylcyanamide with subsequent ring opening to 1-(N,N-dimethylcarbamoyl)-2,3,4-triaryl-1,4-diaza-1,3-butadienes 15. 1,2-Diphenyl-2-(isopropylimino)ethanone (11a) reacts with dimethylcyanamide to give 2-dimethylamino-1-isopropyl-4,4-diphenyl-2-imidazolin-5-one (23) in a hitherto unknown multistep reaction. The structure of 23 was confirmed by an X-ray analysis. VCH Verlagsgesellschaft mbH, 1996.
Cyclization of Dianions from 2-Imino-1,2-diphenylethanone to Oxazolines, Oxazocines, and Oxazonines
Mehrotra, Kailash Nath,Singh, Indra Sen,Roy, Jalpana
, p. 2399 - 2402 (2007/10/02)
The reaction of 2-imino-1,2-diphenylethanone with sodium in ether and subsequent addition of carbon disulfide or ethyl chloroformate resulted in the formation of 3,4,5-trisubstituted 4-oxazoline-2-thiones and 2-ones, respectively. 1,4-Oxazonines and 1,4-o
Syntheses of N-substituted 3,3,4-triphenyl-4-benzoylazetidin-2-ones and 3',3'-diphenyl spiro(acenaphthen-1-one-2,4'-azetidin-2'-ones); novel examples exhibiting a high reactivity of imino group in ketoimines
Singh, S. B.,Mehrotra, K. N.
, p. 1901 - 1906 (2007/10/02)
The reaction of 2-diazo-1,2-diphenylethanone (1) with 2-imino-1,2-diphenylethanones 2a-e gave new N-substituted 3,3,4-triphenyl-4-benzoylazetidin-2-ones 3a-e, together with 1,1',2,2'-tetraphenyl-2,2'-azinodiethanone (4).Similar reaction of 1 with 2-iminoa
