Examples of 'dinitrile' in a sentence
Meaning of "dinitrile"
Dinitrile is a chemical compound that contains two nitrile groups (−C≡N) and is often used in organic synthesis or as a building block in the production of various materials
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- Any organic compound having two nitrile groups
How to use "dinitrile" in a sentence
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dinitrile
Method of producing and separating dinitrile compounds.
One dinitrile or combinations of different dinitriles may be used.
Hydrocyanation of olefinically unsaturated nitriles into dinitrile compounds.
The protected dinitrile is reduced to form a protected diamine.
Regioselective hydrolysis of acrylic dinitrile.
Unreacted dinitrile must be distilled or extracted from the aminonitrile.
Preparation of the dinitrile.
Crystallized dinitrile intermediates may be used in the synthesis of a triethylenetetramine.
Many methods are known for producing a xylylenediamine by hydrogenating an aromatic dinitrile.
Mol of dinitrile compounds.
Reaction with an amine protecting group reagent forms a protected dinitrile.
That dinitrile column bottoms stream also contains recoverable adiponitrile.
For the hydrogenation reaction the dinitrile may be dissolved in a suitable solvent.
The dinitrile feed to the extraction zone may be mainly composed of adiponitrile.
Useful diacids can also be obtained by acid hydrolysis of the dinitrile compounds.
See also
The resulting protected dinitrile is optionally purified by crystallization or another method.
Adiponitrile is withdrawn through said side draw outlet of the dinitrile column.
The reductive hydrolysis of a dinitrile to form a diol is one embodiment of this process.
The nitrile compounds suitable for the invention are especially aliphatic dinitrile compounds.
Complete reduction of a dinitrile to a diamine is a variant of the present hydrogenation process of nitriles.
The catalyst in the process is a hydrogenation catalyst suitable for hydrogenating a dinitrile to an aminonitrile.
Complete reduction of a dinitrile to a diamine is one embodiment of the present hydrogenation processes.
The present invention relates to a process for the manufacture and separation of dinitrile compounds.
Preferably the carbon atoms of the starting dinitrile are arranged in a branched or linear chain.
The protected dinitrile is optionally purified and crystallized prior to subsequent use or reaction.
It is thus a priori a good candidate as starting material for preparing the corresponding biosource dinitrile.
The compounds having a higher boiling point than the dinitrile compounds comprise catalyst degradation products.
Catalyst and an additive disclosed above can be separately introduced into contacting with a dinitrile.
DC is the degree of conversion of the dinitrile compounds to carboxylic acid.
Catalyst degradation products are withdrawn through said bottom draw outlet of the dinitrile column.
Total conversion of the starting dinitrile was achieved in 2 h.
The resulting dinitrile is derivitized to form a benzaldehyde-protected dinitrile.
The present invention relates to a process for the manufacture of diesters starting from dinitrile compounds.
Complete conversion of the starting dinitrile was obtained within 2 h on stream.
The compound will then be in the diacid, diester or dinitrile form.
Optionally, a protected dinitrile is purified by crystallization prior to further reaction.
Reaction with copper cyanide affords the dinitrile analog 3.
Hydrogenating the dinitrile compound with hydrogen or a hydrogen-containing gas ;.
An example is hexamethylenediamine, when the dinitrile substrate is adiponitrile.
The other dinitrile or mononitrile by-products are essentially exploited by combustion to produce energy.
To form a protected diamine, a protected dinitrile is reduced with a reducing agent in a solvent.
Dinitrile compounds, in particular adiponitrile, are important chemical intermediates in the synthesis of numerous compounds.
Initially, the intermediate dinitrile of formula IVa is formed, but not isolated.
Dinitrile compounds, such as adiponitrile, are important chemical intermediates in the manufacture of numerous compounds.
Intermediates which may, but need not be, crystallized include protected dinitrile intermediates.
The resulting dinitrile is derivatized ( optionally in situ ) with a protecting group or groups.
The electrolyte of the cell, therefore, may include polysulphide species dissolved in the dinitrile.
Medium comprising water, methanol and a mixture of dinitrile compounds with the following composition by weight,.
During the hydrogenation reaction NH3 is supplied in an excess relative to the dinitrile.
The desired mononitrile, isomerate and dinitrile products are recovered from each reaction zone, respectively.
