Reactivity of diacyloxyiodobenzenes toward trivalent phosphorus nucleophiles
作者:S?awomir Makowiec、Janusz Rachon
DOI:10.1002/hc.10161
日期:——
equiv of sodium diisopropyl phosphite in THF produces diisopropyl 1-(diisopropoxyphosphinyl)ethylphosphonate with excellent yield. It was found that diacyloxyiodobenzene/PR3 system may serve as an acylating agent; the acylation process can proceed via carboxylic acid anhydride or acylphosphonium salt 17 depending on the protocol used. New very efficient method for synthesis of 2,4,6-trimethylbenzoic
A New and Convenient Method for the Preparation of Functionalized Phosphorothioates
作者:Slawomir Lach、Dariusz Witt
DOI:10.1055/s-0031-1289582
日期:2011.12
A new and efficient method for the synthesis of alkyl and aryl phosphorothioates in high yields via the reaction of (5,5-dimethyl-2-thioxo-1,3,2-dioxaphosphorin-2-yl)disulfanyl derivatives with trimethyl phosphite is described.
HYPERVALENT IODINE IN SYNTHESIS. 49. A NEW EFFECTIVE SYNTHESIS OF Se-PHENYL<i>O,O</i>-DIALKYL PHOSPHOROSELENOATES WITH POLYMER-SUPPORTED PHENYLIODINE DIACETATE
作者:Da-Jun Chen、Zhen-Chu Chen
DOI:10.1081/scc-100000533
日期:2001.1
Se-phenyl O,O-dialkyl phosphoroselenoates have been prepared by the one-pot reaction of sodium O,O-dialkyl phosphorates, diphenyl diselenide, and polymer-supported phenyliodine diacetate (PPID).
Synthesis of the C(43)−C(67) Fragment of Amphidinol 3
作者:Jacqueline D. Hicks、Eric M. Flamme、William R. Roush
DOI:10.1021/ol052322j
日期:2005.11.1
[reaction: see text] A synthesis of the C(43)-C(67) fragment of amphidinol3 (AM3) has been accomplished by a route that features the use of a double allylboration reaction for synthesis of 1,5-diol 4b, which serves as a precursor to dihydropyran 11.
This invention relates to the preparation of pyridyl-4-phosphonates by reacting phosphite ester salts with pyridines which are N-substituted with sterically hindering or "bulky" groups such as "bulky" phenyl groups, for example trityl, .phi..sub.3 C-.