（反式，反式）-4-乙基-4’-丙基-1，1’-双环己烷的合成方法
The synthesis of (trans, trans)-4-ethyl-4'-propyl-1,1'-bicyclohexane via a three-step reaction involving condensation, trans-hydrogenation of the olefin bond, and carbonyl reduction solves the problems of long routes, numerous byproducts, and low yields in existing technologies, achieving efficient and low-cost synthesis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ALLCHEMY (TAIXING) CO LTD
- Filing Date
- 2023-09-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for synthesizing (trans, trans)-4-ethyl-4'-propyl-1,1'-bicyclohexane suffer from problems such as long routes, numerous byproducts, incomplete reactions, and low yields, resulting in high costs.
The target product was prepared by condensation reaction of 4-ethylbicyclohexyl ketone with dimethyl 2-oxopropyl phosphate, followed by selective hydrogenation and carbonyl reduction. (trans, trans)-4-ethyl-4'-propyl-1,1'-bicyclohexane was synthesized by a three-step reaction of condensation, trans-hydrogenation of olefin bond and carbonyl reduction.
It achieves high yield (over 90%) and low cost synthesis with few byproducts, simple post-processing, and can obtain products with over 99% trans content without separate isomerization treatment.
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