cyclobutane-1,1-dicarbonitrile synthesis
- Product Name:cyclobutane-1,1-dicarbonitrile
- CAS Number:110220-15-0
- Molecular formula:C6H6N2
- Molecular Weight:106.13
33582-68-2
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Yield:110220-15-0 81%
Reaction Conditions:
with phosphorus pentoxide at 300; under 15.0015 - 37.5038 Torr; for 1 h;Autoclave;Temperature;
Steps:
Nitrile product preparation example
General procedure: An example of the preparation of the amide intermediate was carried out. Blocking the reaction vessel (when the boiling point of the amide intermediate at normal pressure is equal to or lower than the reaction temperature TB described below) or keeping the reaction vessel open (when the amide intermediate has a boiling point at normal pressure higher than the following When the reaction temperature is TB), stirring is continued (600 r/min), the reaction temperature is changed to TB, and after maintaining the reaction temperature TB for TD hours, the reaction vessel is closed and a vacuum pump is connected to bring the degree of vacuum in the reaction vessel to 20- 50mbar (according to nitrileThe product type is adjusted accordingly, and the distillate is used as the nitrile product. The yield of the nitrile product was calculated and sampled for nuclear magnetic resonance spectroscopy and elemental analysis to characterize the obtained nitrile product. The specific reaction conditions and characterization results are shown in Tables A-6, A-7, A-8, A-9 and A-10 below. These characterization results indicate that the obtained nitrile product has an extremely high purity (99% or more).In these nitrile product preparation examples, 10 g of phosphorus pentoxide was optionally added as a catalyst to the reactor at the beginning of the reaction.
References:
CN105016942,2018,B Location in patent:Paragraph 0136; 0137; 0138; 0140
109-64-8
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138715-18-1
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3779-29-1
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5445-51-2
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