METHOD FOR PREPARING CYCLOALKANE FROM CYCLIC ALCOHOL IN ONE STEP BY MEANS OF MOLECULAR SIEVE

WIPO Patent Application WO/2023/245790

A1

The present invention relates to a method for preparing a cycloalkane from a cyclic alcohol in one step by means of a molecular sieve. The method for preparing a cycloalkane is characterized by comprising: in an inert gas atmosphere, adding a cyclic alcohol and a molecular sieve to an organic solvent and heating the reaction to obtain the cycloalkane, wherein the molecular sieve is a microporous molecular sieve, and the molecular sieve is one of or a mixture of several of X-type, Y-type, L-type, β-type, mordenite, erionite, CHA, RHO, AEL, TS, SAPO-34, ZSM-5, and ZSM-11. The present invention uses a molecular sieve in the preparation of the cycloalkane, such that the cycloalkane product is mainly of a trans-structure, exhibiting good stereoselectivity. After the reaction is complete, the molecular sieve is filtered out and after calcination, can be reused, so that the production costs can be reduced. The reaction process does not require the use of hydrogen gas or high-pressure conditions, thus being environmentally friendly and conducive to industrial production.

JPH026414	PREPARATION OF ISOBUTYLENE
WO/1997/045198	ZEOLITE CATALYST AND ITS USE IN HYDROCARBON CONVERSION

YUAN HU (CN)
ZHOU SHANGQUN (CN)
HU BAOHUA (CN)
MENG FANMIN (CN)

PCT/CN2022/106909

December 28, 2023

July 21, 2022

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VALIANT CO LTD (CN)

C07C1/24; B01J29/42; B01J29/80; C07C1/20; C07C5/03; C07C13/28; C07D309/04

CN110117213A	2019-08-13
CN102389832A	2012-03-28
US5107041A	1992-04-21
CN111054433A	2020-04-24
CN107814676A	2018-03-20
US20110288352A1	2011-11-24

BEIJING ZHONGCHUANG BOTENG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)

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