A method of preparing ortho esters

Details A method of preparing ortho esters A method of preparing ortho esters

C - Chemistry, Metallurgy

07

C

C07C 43/32 (2006.01) C07C 41/56 (2006.01) C07C 41/60 (2006.01) C07C 43/305 (2006.01) C07C 257/06 (2006.01)

Patent

CA 2124522

Ortho esters of the structure Image wherein R1 and R2 are different or the same alkyl moieties and can be a saturated, unsaturated, branched, unbranched or cyclic alkyl moiety of 1-3 carbon atoms, are prepared by first anhydrously reacting hydrogen cyanide or a hydrogen cyanide derivative with a secondary alkanol and hydrogen chloride in the presence of an inert organic solvent. Upon the formation of the resulting imino ether hydrochloride, more secondary alkanol is added to form the ortho esters (I).

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