[EN] PHOSPHONIUM SALTS DERIVATIVES AND THEIR USE AS SOLUBILITY CONTROLLING AUXILIARIES<br/>[FR] DERIVES DE SELS DE PHOSPHONIUM, UTILISATION DE CES DERNIERS EN TANT QU'ADJUVANTS DE REGULATION DE LA SOLUBILITE
申请人:VALORISATION RECH SOC EN COMMA
公开号:WO2005097812A1
公开(公告)日:2005-10-20
The present invention relates to the use of compounds of formula (IA) or (IIA): insert formula (IA) and (IIA) from page 15 of the disclosure wherein A represents various substituted or unsubstituted groups such as furyl, phenyl, pyridyl, naphthyl, or thiophenyl; X- represents an anion; and L1 represents a linker, as solubility controlling auxiliaries. These compounds can also be used as solubility controlling fragments of a molecule. The invention also relates to various methods of controlling the solubility of a molecule or a substrate. Moreover, the invention also relates to various phosphonium supported reagents or various phosphonium salts derivatives.
Tetraarylphosphonium-Supported Carbodiimide Reagents: Synthesis, Structure Optimization and Applications
作者:Maryon Ginisty、Marie-Noelle Roy、André B. Charette
DOI:10.1021/jo702417v
日期:2008.4.1
esterification reactions, amidation reactions and dehydration reactions of hydroxyesters. Taking advantage of the solubility properties imparted by the tetraarylphosphonium unit, a simple precipitation and filtration allowed complete separation of the urea by-products. This paper describes the structure optimization study of the various TAP-supported carbodiimide reagents to obtain the desired reactivity and
Tetraarylphosphonium Salts as Soluble Supports for the Synthesis of Small Molecules
作者:Federica Stazi、David Marcoux、Jean-Christophe Poupon、Daniel Latassa、André B. Charette
DOI:10.1002/anie.200700833
日期:2007.6.25
Removal, Recovery, and Recycling of Triarylphosphonium-Supported Tin Reagents for Various Organic Transformations
作者:Jean-Christophe Poupon、David Marcoux、Jean-Manuel Cloarec、André B. Charette
DOI:10.1021/ol701447q
日期:2007.8.1
Phosphonium-supported tin reagents and catalysts were prepared and were shown to be effective in Stille couplings, radical dehalogenations, radical cyclizations, and carbonyl allylations. Not only could the tin residues be removed from the crude reaction mixture through a phase separation process but also they could be recovered and recycled.
Palladium-Catalyzed Synthesis of Functionalized Tetraarylphosphonium Salts
作者:David Marcoux、André B. Charette
DOI:10.1021/jo702355c
日期:2008.1.1
An efficient method to synthesize functionalized tetraarylphosphoniumsalts is described. This palladium-catalyzed coupling reaction between aryl iodides, bromides, or triflates and triphenylphosphine generates phosphonium salts in high yields. The coupling is compatible with a variety of functional groups such as alcohols, ketones, aldehydes, phenols, and amides.