The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1981
Filed:
Aug. 12, 1976
Arthur W Langer, Jr, Watchung, NJ (US);
Thomas A Whitney, Roselle, NJ (US);
Exxon Research & Engineering Co., Florham Park, NJ (US);
Abstract
Chelating tertiary amino metal amides selected from compounds having the formulae: Mg.sup. ++ [Chel N].sub.2.sup..crclbar. wherein [Chel N].sup..crclbar. is not ##STR1## [Chel N].sup..crclbar. M.sup..sym., [Chel N].sup..crclbar. M.sup..sym. M'H.sub.m R.sub.n X.sub.p, Z Mg.sup..sym. [Chel N--M'H.sub.m R.sub.n X.sub.p ].sup..crclbar., Mg.sup. ++ --[Chel N--M'H.sub.m R.sub.n X.sub.p ].sup..crclbar. [M'H.sub.m R.sub.n X.sub.p Z].sup..crclbar., Chel N-Mg.sym.[N--Mg.sup..sym. H.sub.m R.sub.n X.sub.p Z].sup..crclbar. and Mg.sup. ++ [Chel N--M'H.sub.m R.sub.n X.sub.p ].sub.2 .sup..crclbar., wherein M is a Group IA metal, M' is a metal selected from the group consisting of Li, Na, Mg, Be, Zn, Cd, B, Al, Ga, In, Zr, Ti, Sn and Cu and m and n=0 to 4, p=0 to 3 and (m+n+ p)=the valence of M' and (m+n)= at least 1 and X is a nonreactive group selected from the group consisting of chlorine, bromine, iodine, C.sub.1 to C.sub.20 alkoxide, C.sub.1 to C.sub.20 thioalkoxide, C.sub.2 to C.sub.40 hydrocarbyl secondary amide and C.sub.2 to C.sub.40 hydrocarbyl secondary phosphide, R is hydrocarbyl group and Z is selected from the group consisting of R, X and H. In an alternative embodiment, the instant invention relates to chiral optically active chelating tertiary amino metal amides selected from compounds having the formulae: [Chel*N].sup..crclbar. M.sup..sym. ; [Chel*N].sup..crclbar. M.sup..sym. M'H.sub.m R.sub.n X.sub.p, Z Mg.sup..sym. [Chel*N--M'H.sub.m R.sub.n X.sub.p ].sup..crclbar., Mg.sup. ++ [Chel*N--M'H.sub.m R.sub.n X.sub.p ].sup..crclbar. [M'H.sub.m R.sub.n X.sub.p Z].sup..crclbar., Chel*N--Mg.sup..sym. [M'H.sub.m R.sub.n X.sub.p ].sup..crclbar., Mg.sup. ++ [Chel*N--M'H.sub.m R.sub.n X.sub.p ].sub.2.sup..crclbar. and Mg.sup. ++ [Chel*N].sub.2 .sup..crclbar. wherein M, M', R, X, m, n, p and Z are as defined previously and where * denotes optical activity. The compounds of the instant invention are useful in metalations, synthesis, asymmetric synthesis and other reactions,. When chiral optically active chelating tertiary amino metal amides are used, the reactions which can be performed include all of the above, plus other reactions which produce chiral or stereoregular products.