| 摘要 |
NEW MATERIAL:A compound expressed by formula II (R is 2-4C alkyl). EXAMPLE:Bis(1-isothiocyanate-2-methylpropyl)ether. USE:A monomer or modifier for synthetic resin. PREPARATION:An aldehyde expressed by the formula RCHO (e.g. propionaldehyde, buthylaldehyde, etc.) is reacted with trimethylsilylisothiocyanate expressed by formula II in 1-2, preferably 1-1.2 equivalent based on 1 equivalent aldehyde in the presence of Lewis acid (e.g. aluminum chloride, stannic chloride, etc.) to provide a compound expressed by formula I. The Lewis acid is added in 0.01-0.5, preferably 0.01-0.1 equivalent based on 1 equivalent aldehyde. |
