Coupling reaction of formaldehyde and methyl formate over sodium bisulfate catalyst;

Coupling of formaldehyde and methyl formate catalyzed by aminosulfonic acid;

Study on synthesis of methyl formate by methanol carbonylation using pyridine promoter;

Alkali metallic salts modification for catalyst of hydrogenation of methyl benzoate at low H_2/ester molar ratio;

Sythesis of methyl benzoate using chitosan sulfate as catalyst;

Tribenuronmethyl was synthesized in a two-step process involving esterification and amination using 2-methoxycarbonyl-sulfamoylbenzoate and methyl chloroformate as starting material.

First,2-methoxycarbonyl-3-aminosulfonylthiophene reacts with methyl chloroformate to give 2-methoxycarbonyl-3-aminosulfonyl methyl formatethiophene,then thifensulfuron was obtained after the reaction of the above product with 2-amino-4-methoxy-6-methyl-1,3,5-triazine.

This paper is a detailed study of synthesisingtrichloromethyl chloroformate from the two differentmaterials of methyl formate or methyl chlorofor-mate.

Our study aims at establishing a multiple-endpoint system for genotoxicity test based on human cells including comet assay, in vitro micronucleus test and tk gene mutation analysis, evaluating the genotoxicity of three chemicals with different mechanism, namely methyl methanesulfonate (MMS), mitomycin C (MMC) and sodium azide (NaN3), and providing .

Cell chromosomes DNA damage of Saccharomyces cerevisiae (SC) S288C by MMS (methylmethanesulfonate) and its telomerase activity modulation were observed.