Introduction of a new synthetic route about 3,3,5-Trimethylcyclohexanol

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,116-02-9, its application will become more common.

Electric Literature of 116-02-9 ,Some common heterocyclic compound, 116-02-9, molecular formula is C9H18O, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.

Synthesis 4 Synthesis of 3-(3,3,5-trimethylcyclohexyloxy)phenol In a four necked flask (1 L) sufficiently dried, substituted with nitrogen, and equipped with a dropping funnel, Dimroth condenser tube, thermometer and stirring blade, resorcinol (42 g, 0.38 mol), 3,3,5-trimethylcyclohexanol (54 g, 0.57 mol) and triphenylphosphine (150 g, 0.57 mol) were dissolved in dried tetrahydrofuran (200 ml) under a nitrogen gas stream, and a mixed solution of diisopropyl azodicarboxylate (100 g, 0.5 mol) and dried tetrahydrofuran (150 ml) was dropped for 1 hour while cooling with an iced saline solution. Next, it was stirred at room temperature for 12 hours. After the reaction terminated, 30 % hydrogen peroxide (75 ml) was dropped through the dropping funnel for 10 minutes, then the reaction solution was dissolved in 1 L toluene, and washed three times with 500 ml water. Toluene was distilled away by evaporation, and the residue was purified by column chromatography using hexane and ethyl acetate as developing solvents, to obtain a red brown objective product (hereinafter, referred to as R-4A) (19.5 g, 22 % yield, 99 % GC purity). The chemical shift value (delta ppm, TMS standard) of 1H-NMR of this compound in a heavy dimethyl sulfoxide solvent was 0.7 (m, 1H), 0.9 to 1.0 (m, 9H), 1.2 to 2.0 (m, 6H), 4.1 (m, H), 6.5 (m, 3H), 7.0 (m, H), 8.9 (b, H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,116-02-9, its application will become more common.

Reference:
Patent; Mitsubishi Gas Chemical Company, Inc.; EP2505576; (2012); A1;,
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