โ Scribed by H. J. CRISTAU; M. TAILLEFER; J. P. URBANI; A. FRUCHIER
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
In order to further delimit the scope of application of diphenylphosphonium diylides, their reactivity towards carbonic acid derivatives was investigated. Non-stabilized diyfides react with ethyl carbonate to give new monoylide intermediates which lead, by in situ Wittig reaction with carbonyl compo
Lithiam diphenylphosphoniam diylides readily attack phenyliscqunate and dic~lohexykarixniiimide The formed stmi-stabilised ylides bear a metallated amide or amidinefunction llwir ase in situ as Wutig reagents towar& aldehydes and ketones is shown to be a new one-pot, E-stereosekctiw synthesis for a,
Reactivity of Dimethylphenylsilyllithium Toward 5-and 6-Substituted 1,3-Dimethyluracil Derivatives. -The reactions of Li-SiMe 2 -Ph (II) with several 5- and6-substituted 1,3-dimethyluracil derivatives is studied. In general, (II) reacts with 5-substituted uracils by selective addition at the electr