METHOD FOR PREPARING COMPOUNDS OF OXIRANE, PHENOL, KETONES AND/OR ALDEHYDES Russian patent published in 2006 - IPC C07D301/19 C07C37/08 C07C27/10 

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for synthesis of compounds of oxirane, phenol and ketones and/or aldehydes. Proposed method involves the following steps: (i) oxidation of alkylaryl wherein alkyl substitute comprises from 2 to 10 carbon atoms to yield alkylaryl hydroperoxide; (ii) contacting at least part of alkylaryl hydroperoxide prepared at the step (i) with olefin in the presence of catalyst to yield oxirane compound and alkylaryl hydroxyl; (iii) reaction of at least part of alkylaryl hydroperoxide prepared at the step (i) to yield phenol and ketone and/or aldehyde; (iv) separation of oxirane compound from the reaction product from the step (ii), and (v) contacting at least part of the reaction product no containing oxirane with hydrogen to yield alkylaryl and at least part of the latter is re-circulated to the step (i). Invention provides the development of the combined method for synthesis of oxirane, phenol, ketones and/or aldehydes that allows reducing the amount of by-side products due to their conversion to useful compounds.

EFFECT: improved method of synthesis.

8 cl