This paper reviews the research and development of phosgene Derivates,including diphenyl ketone,chlorocarbonate,isocya-nate,acyl chloride and carbonates.
METHODS Balsalazide disodium was synthesized by reactions of condensation , reduction, diazotization , coupling and salification from 4-nitrobenzoyl chloride.
Furfuryl propionate was synthesized from furfuryl alcohol and propionyl chloride using hexahydropyridine as catalyst and anhydrous sodium bicarbonate as acid-caputor.
Four kinds of methods to synthesize o-Dichlorobenzaldehyde were introduced. the advantages of hydrolysis methods to reduce p-toluene sulfonyl chloride were discussed.
This paper describes that synthesis of the cyclohexyl Sulfinyl chloride from the cyclohexanol by three technologies, and application in the antiscorching agent.
The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent.
A synthetic method of benazolin ethyl was present with ochloroaniline, ammounium rhodanide, sulfuryl chloride, sodium nitrite and ethyl chloroacetate as the raw materials.
Named Kevlar, this alternating blend of 1,4-phenylene-diamine and terephthaloyl chloride combine at the molecular level to form a series of parallel chains.