22730-67-2Relevant articles and documents
Organic Reactive Intermediates: Part XI - Preparation and Reactions of Xanthenyl Ylids
Handoo, Kishan L.,Kaul, Anju
, p. 1 - 2 (2007/10/02)
Two new xanthenyl ylids, viz. triphenylphosphoniumxanthen-9-ylid and triphenylphosphoniumthioxanthen-9-ylid have been prepared.The former undergoes normal Wittig reaction with a number of carbonyl compounds yielding olefins.
Synthesis of Unsymmetrical Δ4,4'-Bi-4H-pyrans and -thiopyrans
Reynolds, George A.,Chen, Chin H.
, p. 2458 - 2459 (2007/10/02)
Unsymmetrical Δ4,4'-bi-4H-pyrans and -thiopyrans are prepared from the Wittig reagent which is derived from (4H-pyran-4-yl)triphenylphosphonium salts or the thio analogues by allowing the reagent to react with a pyrylium or thiopyrylium salt wi
