Acid Esters From Phenols Phenyl Cyanate

Submitted by D Martin and M Bauer Checked by E R Holler, Jr and R E Benson 

Caution These operations, which involve toxic reagents, should be conducted in an efficient hood. 

1 The chemicals used were commercially available products and were used without further purification The checkers used sodium cyanide, phenol, and tetrachloromethane from Fischer Scientific Company, bromine from Matheson, Coleman and Bell, phosphonc anhydride from J T Baker Chemical Co, and triethylamme from Eastman Organic Chemicals 

3 The procedure can also be conducted using other water immiscible solvents such as ether, tnchloromethane, and benzene  

4 Other drying agents such as anhydrous calcium chloride can also be used The desiccation must be done carefully since water is soluble in the product in the presence of phenol and may cause tnmenzation of the cyanate to a 1,3,5-tnazine derivative 

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CYANIC ACID ESTERS FROM PHENOLS PHENYL CYANATE... 

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