Complexation of titanium alkoxides with pentenoic acid and allylacetoacetate and their hydrolysis and addition reactions with H-silanes

✍ Scribed by Asgar Kayan; Dagobert Hoebbel; Helmut Schmidt

• Book ID: 101591567
• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 112 KB
• Volume: 95
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.21315

✦ Synopsis

Abstract

Complexation reactions of titanium tetraethoxide [Ti(OEt)~4~] and titanium tetra‐n‐butoxide [Ti(OBu^n^)~4~] with 3‐pentenoic acid (PA) and allylacetoacetate (AAA), in a 1 : 1__M__ ratio, were studied in ethanol solution at room temperature. ^13^C‐NMR and FTIR spectra showed that all PA and AAA completely reacted with both titanium alkoxides. Hydridosilane compounds such as triethoxysilane and triethylsilane were added to titanium chelate complexes in a 1 : 1__M__ ratio. The investigation of products by ^13^C‐ and ^29^Si‐NMR and FTIR showed additions of SiH to the CC double bond. The hydrolysis of titanium–PA and AAA complexes, by water in 1 : 4 ratios, resulted in released PA in an amount of 10% and AAA of 20%. The stability of hydrolyzed products was investigated by ^13^C‐NMR, ^29^Si‐NMR, and FTIR. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 95: 790–796, 2005