Process for preparing β-Ketocarbonyl-functional...

Details Process for preparing β-Ketocarbonyl-functional... Process for preparing β-Ketocarbonyl-functional...

2007-05-03

2009-02-24

Barts, Samuel A (Department: 1621)

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

Organic compounds

Silicon containing

Reexamination Certificate

active

07495119

ABSTRACT:
β-ketocarbonyl-functional organosilicon compounds are prepared by reacting,organosilicon compounds containing an SiC-bonded organic radical having a primary amino group, withorganic ester compounds containing a group of the formulain-line-formulae description="In-line Formulae" end="lead"?—O—C(═O)—in-line-formulae description="In-line Formulae" end="tail"?and, reacting the product with diketenes or diketene derivatives, to produce β-ketocarbonyl-functional organosilicon compounds containing at least one SiC-bonded radical of the formulaein-line-formulae description="In-line Formulae" end="lead"?—R1{—N[C(═O)—CHR5—C(═O)—CH2R5]—R1}x—NH—C(═O)—(O)v—R4{—O—[C(═O)—CHR5—C(═O)—CHR5]yH}zorin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?—R1(—NR2′—R1)x—NH—C(═O)—(O)v—R4{—O—[C(═O)—CHR5—C(═O)—CHR5]yH}zin-line-formulae description="In-line Formulae" end="tail"?R1is a divalent C1-18organic radicalR2is a hydrogen atom or a monovalent C1-18organic radical,R5is hydrogen,v is1,x is0or an integer from1to10,R2′has one of the meanings of R2with the proviso that R2′is not a hydrogen atom, y is0or1, and z is1or2.

REFERENCES:
patent: 4808649 (1989-02-01), Gay et al.
patent: 4861839 (1989-08-01), Mizuguchi et al.
patent: 5952443 (1999-09-01), Wilt et al.
patent: 6121404 (2000-09-01), Liles
patent: 2007060089 (2007-05-01), None
English Abstract corresponding to WO 2007/060089 A.

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