Hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles
AssigneeE. I. Du Pont de Nemours and Company
InventorRafael Shapiro
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Abstract
Improved liquid phase process useful in the hydrocyanation of diolefinic compounds to produce nonconjugated acyclic nitriles and to the liquid phase process of isomerization of the nitriles to 3- and/or 4-monoalkene linear nitriles. The improvement involves conducting the process in the presence of zero-valent nickel and a multidentate phosphite ligand. The invention also provides a novel method of making phosphorochloridite.
Claims2
A method of making phosphorochloridite comprising contacting a compound of the formula N(R.sup.18).sub.2 P(OR.sup.19).sub.2, wherein R.sup.18 is alkyl and R.sup.19 is substituted aryl, with gaseous hydrogen chloride to produce HN(R.sup.18).sub.2.HCl and (R.sup.19 O).sub.2 PCl.
Dependencies are inferred from the claim text.