THE APPLICATON OF ULTRASOUND TO THE DI-ALKYLATION AND CYCLO-DI-ALKYLATION OF ETHYL CYANOACETATE UNDER SOLID-LIQUID PHASE TRANSFER CONDITIONS

Comparative experiments show that ultrasonic irradiation reduces the reaction times and improves the yields in the di-alkylation and cyclo-di-alkylation of ethyl cyanoacetate under solid-liquid phase transfer conditions.

A NEW ROUTE FROM HETEROAROMATIC BORON COMPOUNDS TO CORRESPONDING KETONES VIA DICHLOROCARBENE INSERTION UNDER PHASE TRANSFER CONDITIONS

The reactions of tri-2-benzofuranylborane or aminoethyl di-2-thienylborinate and 2-thienylphenylborinate with dichlorocarbene generated in situ from chloroform under phase transfer conditions were explored as a new route for the preparation of heteroaromatic ketones. It was found that a good yield of the ketones can be obtained by solid-liquid system.

PALLADIUM-CATALYZED ARYLATION OF α-CYANOSULFONES UNDER PHASE TRANSFER CONDITIONS

(?)-Aryl-(?)-cyanosulfones are prepared under mild conditions with good yields by using palladium-catalyzed coupling reaction between aryl halides and (?)-cyanosulfones in the presence of phase transfer catalyst.

REGIOSELECTIVE O-ALKYLATION OF MYO-INOSITOL DERIV ATIVES WITH ALKYL HALIDES UNDER S-L PHASE TRANSFER CATALYTIC CONDITIONS

A convenient synthetic approach leading to protected inositol was described based on regioselective O-alkylation using alkyl halide under solid-liquid PTC condition