Regiospecific fragmentation of benzene derivatives: synthetic and analytical applications
作者:Neil J Hales、Harry Heaney、John H Hollinshead、Steven V Ley
DOI:10.1016/0040-4020(95)00395-o
日期:1995.7
The cycloadducts farmed from arenes and tetrachloroand tetrafluorobenzyne have been shown to undergo specific addition-fragmentation reactions. These sequences are both simple syntheses of arenes with unusual substitution patterns and a convenient alternative to the other methods currently available for assaying the isotopic distribution in [14C]-labelled benzene derivatives.
HALES N. J.; HEANEY H.; HOLLINSHEAD J. H., SYNTHESIS <SYNT-BF>, 1975, NO 11, 707-708
作者:HALES N. J.、 HEANEY H.、 HOLLINSHEAD J. H.
DOI:——
日期:——
The dechlorination of some highly chlorinated naphthalene derivatives
作者:Neil J Hales、Harry Heaney、John H Hollinshead、Steven Mf Lai、Pritpal Singh
DOI:10.1016/0040-4020(95)00396-p
日期:1995.7
The [4+2]cycloadducts formed between tetrachlorobenzyne and a variety of arenes and cyclic 1,3-dienes have been reductively dechlorinated. The products are formally benzyne cycloadducts, many of which are difficult to make by other routes. High yields are obtained when sodium and t-butanol in boiling THF are used for the reduction. THF serves as a solvent but t-butanol not only acts as a proton donor