Catalysis of condensation reactions

C - Chemistry – Metallurgy – 07 – D

Patent

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260/609, 260/595

C07D 487/08 (2006.01) C07D 265/30 (2006.01) C07C 87/04 (1985.01)

Patent

CA 1198429

ABSTRACT Certain hydrogen phosphate and pyrophosphate compositions are employed as catalysts for organic condensation reactions. Particularly high conversions and selectivities are obtained by the use of synergistic mixtures of in cyclization reactions such as in the conversion of hydroxyethylpiperazine to triethylene- diamine and morpholine to dimethylaminoethylmorpholine.

444540

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