Reduction of carboxylic esters

C - Chemistry – Metallurgy – 07 – C

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C07C 43/253 (2006.01) C07C 41/26 (2006.01) C07C 43/23 (2006.01) C07C 46/02 (2006.01) C07C 46/04 (2006.01) C07C 46/06 (2006.01) C07C 50/28 (2006.01) C07F 7/18 (2006.01)

Patent

CA 1290760

ABSTRACT OF THE DISCLOSURE A method for producing a compound of the formula: Image [wherein R1 and R2 each stand for a lower alkyl group; n denotes an integer of 0 to 21; X stands for hydrogen atom or an optionally protected hydroxyl group; and Y stands for an optionally protected hydroxyl group], which comprises by reducing an ester compound of the formula: Image [wherein R1, R2, n, X and Y are of the same meaning as defined above, and R3 stands for a lower alkyl group] with a mixture of sodium borohydride and aluminum chloride in the presence of water, gives the desired compound in a high yield, and is advantageous from an industrial point of view.

565050

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