cyanate compounds are prepared by the reaction of thallium salts of polyols with cyanogen chloride the compounds are useful for common reactions known for multifunctional cyanates including rearrangement into the corresponding isocyanate and then formation of polymers or use as cross linking agents application_number US 11816680 A description the preparation of the new compounds of the invention may be carried out according to the following process a thallium i salt of an aliphatic diol is first prepared by alkoxide exchange between a corresponding aliphatic diol and thallium i ethoxide according to well known techniques in the art the resulting thallium i salt of the corresponding aliphatic diol is then reacted with cyanogen chloride preferably in an inert solvent diethyl ether is a preferred solvent for use in this reaction but other non reactive solvents may also be used other acceptable solvents for use in producing the compounds of this invention may be determined by normal methods of chemical experimentation the thallium i alkoxide reactant or a mixture of this reactant with the inert solvent is controllably added with stirring to the reaction vessel containing cyanogen chloride in an inert solvent while maintaining the reaction mixture at a temperature no greater than about 25 u00b0 c following completion of the addition of the thallium i alkoxide salt the mixture can.