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Methyl glutaronitrile

The catalytic cycle for the hydrocyanation of 4PN to desired adiponitrile and undesired 2-methyl glutaronitrile (MGN) is shown by Fig. 7.15. The intermediates that lead to the formation of 7.56 or 7.57 from NiL3 are not shown... [Pg.156]

Example 8.12. By-product formation in hydrocyanation of 4-pentenenitrile [44]. Hydrocyanation of 4-pentenenitrile (4-PN) to adiponitrile (ADN) was examined in some detail Example 8.7. The du Pont process maximizes the yield of adiponitrile, the desired product, by addition of a Lewis acid such as zinc chloride or tri-alkylborane, but nevertheless some 2-methyl-glutaronitrile (2-MGN) is formed as byproduct ... [Pg.248]

The adiponitrile-to-2-methyl glutaronitrile yield ratio and the selectivity to adiponitrile are found to be... [Pg.250]

As shown by reactions 5.6.4 and 5.6.5, in the second stage 3PN is isomerized to 4-pentenenitrile (4PN) and the second molecule of HCN is added. Regioselectivity is of paramount importance and the addition of the second molecule of HCN must take place again in an anti-Markovnikov manner to give ADN, the desired product. The branched product by the Markovnikov pathway, called 2-methyl glutaronitrile (2-MGN), is an unwanted side product. [Pg.155]

C0CI2, Zn, P(OCeH4CH3)3 3-Pentenenitrile adiponitrile, methyl glutaronitrile and ethyl succinonitrile a 5... [Pg.375]

Glutaronitrile, 2-methyl- HSDB 6502 Methyl glutaronitrile 2-Methylglutaronitrile a-Methylglutarsauredinitril 2-Methylpentanedinitrile 2-Methyl-1,5-valerodinitrile Pentanedinitrile,... [Pg.407]

A. Nucleophilic Attack on Carbon. —(/) Activated Olefins. A study of triarylphosphine-catalysed dimerization of acrylonitrile to 2-methylene-glutaronitrile (26) and 1,4-dicyano-l-butene (27) has established a balance between phosphine nucleophilicity and protolytic strength of the solvent. The reaction of methyl vinyl ketone with triphenylphosphine in triethyl-silanol gave only 3-methylene-2,6-heptadienone (28). [Pg.5]

PC propylene carbonate NMO 3-methyl-2-oxazolidinone TBAI tetrabutylammonium iodide AN acetonitrile PN propionitrile GN glutaronitrile MAN methoxyacetonitrile MPN 3-methoxypropionitrile TBP tert-butylpyridine HMIml l-hexyl-3-methylimidazolium iodide DMPIml 1,2- dimethyl-3-propy-limidazolium iodide SOC Sumitomo Osaka Cement Co. Ltd. [Pg.160]

BROMOMETHYL)GLUTARONITRILE GLUTARO-NTTRILE, 2-BROMO-2-(BROMOMETHYL)- METHYL-DIBROMOGLUTARONITRILE PENTANEDINTTRILE, 2-BROMO-2-(BROMOMETHYL)-... [Pg.444]

NITRILES Glutaronitrile. Succinonitrile. Hexamethylphosphoric triamide. Methyl cazboazate. Methyl isocyanate. Phospho-nitrilic chloride. Titanium(IV) chloride. p-Toluenesulfonylhydrazine. Trichloroiso-cyanuric acid. [Pg.591]

In the multicenter study of the Information Network of Departments of Dermatology, sensitization rates of preservatives in the standard series were all over 1% in the test population of 11485 patients. Thiomersal was rating highest (5.3%), chloromethyl-isothiazolinone/methyi-sothiazolinone, formaldehyde, and methyl-dibromo-glutaronitrile/phenoxyethanol were next at about 2%, and parabens rating lowest at 1.6%. Glutaral, a biocide... [Pg.1144]

Glutaronitrile ( C5H4N2) + Methyl Alcohol < CHi,.0 ) Phibbs,19S5... [Pg.695]

MDM hydantoin, imizalodinyl urea, methenamine, methyl benzoate, methylchloroisothiazolinone, methyldibromo glutaronitrile, methylisothiazolinone. [Pg.225]

See other pages where Methyl glutaronitrile is mentioned: [Pg.302]    [Pg.739]    [Pg.277]    [Pg.302]    [Pg.458]    [Pg.406]    [Pg.705]    [Pg.739]    [Pg.52]    [Pg.277]    [Pg.516]    [Pg.516]    [Pg.66]    [Pg.395]    [Pg.603]    [Pg.562]    [Pg.96]    [Pg.190]    [Pg.637]   
See also in sourсe #XX -- [ Pg.248 , Pg.249 ]



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Glutaronitrile

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