Preparation of Cycloheptanone

Cycloheptanone achromatic adipose liquid. Boiling point 179-180℃, the about body of 0.9508 ( 20 ℃), a refractive basis of 1.4608, the beam point of 55℃. Soluble in booze and ether, about baffling in water, with peppermint odor. In case of fire, combustible, top calefaction and oxidant exposure, it will could cause an explosion.

Cycloheptanone from cyclohexanone and nitromethane addition, reduction, diazotization, ring and. Process is: methanol, nitromethane, cyclohexanone is added to the acknowledgment pot stirring, abacus acrid liquor at 5-10 ℃, -4 ℃cold to 1H, to clarify out the precipitation, attenuated in water, with acerb acerbic to pH=4-5, and again acrimonious to dissolve, static, bisect the backlog accept no methyl cyclohexanol awkward oil; again awkward oil adamant crumb reduction, to amines a cyclohexanol abridgement solution; abacus sodium nitrite solution, at 0-8 ℃diazotization, heating up to 25℃mixing 1.5h, again up to 85 ℃, again the baptize breath distillation, the alcohol of static, bisect oil exhaustion distillation, accumulating of 60℃( 1.87kPa ) fraction, accept artefact cycloheptanone.

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From: Chemistry chemicals