Process for preparing anhydro polyol containing polyol mixtures

Details Process for preparing anhydro polyol containing polyol mixtures Process for preparing anhydro polyol containing polyol mixtures

C - Chemistry, Metallurgy

07

C

260/367.2, 260/6

C07C 31/18 (2006.01) C07D 307/20 (2006.01) C07D 493/04 (2006.01)

Patent

CA 1178288

ABSTRACT OF THE DISCLOSURE A process for preparing polyol mixtures containing two or more polyols selected from the group consisting of C4-C6 sugar alcohols, C4-C6 monoanhydro polyols, and C4-C6 dianhydro polyols is disclosed. The process is carried out at elevated temperature and in the presence of a strongly acidic heterogeneous catalyst. Water content in the reaction mixture and reaction time are controlled to produce polyol mixtures having hydroxyl numbers in the range from 810 to 1800. The mixtures are useful as starting materials or as intermediates in chemical syntheses.

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