Tetrahedron

Preparation and properties of some thiouronium fluorenylides and cyclopentadienylides and the attempted preparation of selenouronium and guanidinium …

D Lloyd, RW Millar

文献索引：Lloyd,D. et al. Tetrahedron, 1977 , vol. 33, p. 1379 - 1389

全文：HTML全文

被引用次数: 48

摘要

Some stable thiouronium fluorenylides and cyelopentadienylides, prepared by treatment of the corresponding thiouronium salts with non-aqueous base, exist as tautomeric mixtures of the fluorenylide and fluorenylisothiourea, but undergo reactions typical of ylides, eg Wittig reactions with aldehydes or nitrosobenzene; a 2, 3, 4-triphenylcyclopentadienylide gave anomalous products. The ylides also react with acids, alkali, benzyl bromide, and ...