Process for the synthesis of amine ethers from secondary...

Details Process for the synthesis of amine ethers from secondary... Process for the synthesis of amine ethers from secondary...

2005-05-31

2005-05-31

Davis, Zinna Northington (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C540S451000, C540S485000, C544S106000, C544S359000

Reexamination Certificate

active

06900328

ABSTRACT:
An amine ether of formula (A) wherein a is 1 or 2; and when a is 1, E is E′; when a is 2, E is L; E′ is C1-C36alkyl; C3-C18alkenyl; C2-C18alkinyl; C5-C18cycloalkyl; C5-C18cycloalkenyl; a radical of a saturated or unsaturated aliphatic bicyclic or tricyclic hydrocarbon of 7 to 12 carbon atoms; C2-C7alkyl or C3-C7alkenyl substituted by halogen; C7-C15aralkyl or C7-C15aralkyl substituted by C1-C4alkyl or phenyl; or E′ is a radical of formula (VII) as explained in claim 1; T′ is tertiary C4-C18alkyl or phenyl, each of which are unsubstituted or substituted by halogen, OH, COOR21or C(O)—R22; or T′ is C5-C12cycloalkyl; C5-C12cacloalkyl which is interrupted by at least one O or —NR18—; a polycyclic alkyl radical having 7-18 carbon atoms, or the same radical which is interrupted by at least one O or —NR18—; or T′ is —C(G1)(G2)—T″; or C1-C18alkyl or C5-C12cycloalkyl substituted by F(I)T″ is hydrogen, halogen, NO2, cyano, or is a monovalent organic radical comprising 1-50 carbon atoms; or T″ and T′ together form a divalent organic linking group completing, together with the hindered amine nitrogen atom and the quaternary carbon atom substituted by G1and G2, an optionally substituted five- or six-membered ring structure; and all other residues are as defined in claim 1, are obtained in good yield from the corresponding N-oxyl hindered amine precursor by reaction with a hydrocarbon E1—H or H—L—H in the presence of an organic hydroperoxide and a catalytic amount of copper or a copper compound. The products of present process find utility as polymerization regulators and/or light stabilizers for organic material

REFERENCES:
patent: 4921962 (1990-05-01), Galbo et al.
patent: 6117995 (2000-09-01), Zedda et al.
patent: 19907945 (1999-08-01), None
patent: 0569334 (1993-11-01), None
patent: WO 99/46261 (1999-09-01), None
Connolly et al, Tetrahedron Letter, vol. 37, No. 28, 1996, pp 4919-4922.*
T. J. Connelly et al., Tetrahedron Letters, vol. 37, No. 28, (1996), pp. 4919-4922.

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