An unusual heterocyclization of 2,3-diacetylenyl-1,4-naphthoquinones
摘要:
Cyclocondensation of 2,3-diacetylenyl-1,4-naphthoquinones with NH2NH2 affords 1,3-disubstituted 2H-N-aminobenzo[f]isoindole-4,9-diones. (C) 2000 Published by Elsevier Science Ltd.
Substitution of acetylenic groups for halogen in the quinonoid ring
作者:V. S. Romanov、I. D. Ivanchikova、A. A. Moroz、M. S. Shvartsberg
DOI:10.1007/s11172-006-0023-7
日期:2005.7
The bromine or iodine atom in the quinonoid ring devoid of +M substituent in the position neighboring to the halogen is replaced by acetylenic groups on treatment with CuI acetylides, prepared either beforehand or in situ, in a mixture of DMSO and CHCl3 in the presence of a Pd complex catalyst. A series of mono- and diacetylenic derivatives of 1,4-naphtho- and 1,4-benzoquinone were prepared.
An unusual heterocyclization of 2,3-diacetylenyl-1,4-naphthoquinones
作者:Mark S Shvartsberg、Irena D Ivanchikova、Nadezhda I Lebedeva
DOI:10.1016/s0040-4039(00)00898-4
日期:2000.7
Cyclocondensation of 2,3-diacetylenyl-1,4-naphthoquinones with NH2NH2 affords 1,3-disubstituted 2H-N-aminobenzo[f]isoindole-4,9-diones. (C) 2000 Published by Elsevier Science Ltd.