Method for producing macrocyclic ketones

Details Method for producing macrocyclic ketones Method for producing macrocyclic ketones

2005-10-04

2005-10-04

Richter, Johann (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S375000, C568S377000, C568S821000, C568S823000

Reexamination Certificate

active

06951964

ABSTRACT:
The present invention relates to a novel thermo-isomerization method for rapidly and simply producing macrocyclic ketones of the formula Ia or Ib.The macrocyclic ketones are prepared in the gas phase at temperatures above 500° C. rapidly and in a simple manner from alcohols of the formula IIa and IIb directly with a high yield.In the formulae Ia, Ib, IIa and IIb, R1-R5, and n have the meanings given in the description.

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