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ChemInform Abstract: Water-Soluble Calixarenes as New Inverse Phase-Transfer Catalysts. Their Application to Aldol-Type Condensation and Michael Addition Reactions in Water.

โœ Scribed by Shoichi Shimizu; Seiji Shirakawa; Takashi Suzuki; Yasuyuki Sasaki

Publisher
John Wiley and Sons
Year
2010
Weight
37 KB
Volume
32
Category
Article
ISSN
0931-7597

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Water-Soluble Calixarenes as New Inverse
Water-Soluble Calixarenes as New Inverse Phase-Transfer Catalysts. Their Scope in Aqueous Biphasic Alkylations and Mechanistic Implications
โœ Shoichi Shimizu; Takashi Suzuki; Seiji Shirakawa; Yasuyuki Sasaki; Choichiro Hir ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 121 KB ๐Ÿ‘ 1 views

Alkylation reactions of active methylene compounds, alcohols and phenols with alkyl halides in aqueous NaOH solution can be carried out without the need for any added organic solvents in most cases. The water-soluble calix[n]arenes, which contain trimethylammoniomethyl groups on the upper rim, were