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.