ChemicalBook CAS DataBase List hexane-3,4-diol

hexane-3,4-diol synthesis

13synthesis methods

Product Name:hexane-3,4-diol
CAS Number:922-17-8
Molecular formula:C6H14O2
Molecular Weight:118.17

36611-94-6
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922-17-8
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Yield:922-17-8 90.6%

Reaction Conditions:

with water at 130; under 16501.7 Torr;

Steps:

5 preparation of o-diol compound

General procedure: In a 100 ml jacketed stainless steel tubular reactor, 30 ml of the structure represented by the general formula (3)Halogen meta-substituted macroporous polystyrene-divinylbenzene quaternary ammonium salt anion exchange resin catalyst,The catalyst bed is filled with an inert ceramic ball on the upper and lower ends.The temperature of the reactor is controlled by an external circulation type heat transfer oil,The reactor pressure is controlled by a back pressure valve mounted on the outlet line,The reaction material is fed from the bottom of the reactor through a metering pump,Flowing through the catalyst bed from the top of the reactor,Cooled by the cooler and flowed into the reaction product tank.Timing sampling,Analysis of the reaction product by gas chromatography.To investigate the reaction concentration,Reaction temperature, pressure,Liquid hourly space velocity and catalyst type change on the reaction,The reaction materials used in Examples 1 to 10 are shown in Table 1, and the catalyst used has the structure of the general formula (3), wherein the X, y, R5, R6, R7 groups, the ion exchange resin crosslinking degree, the alkali exchange capacity ) See Table 2, the reaction process conditions and reaction results in Table 3.

References:

CN106478371,2017,A Location in patent:Paragraph 0027-0028; 0032; 0037