ISSN:
0021-8383
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The stepwise reaction between titanium alkoxides and benzoic acid has been investigated in detail. It has been shown that replacement of first two alkoxy groups of titanium alkoxide (Ti(OR)4; OR=OPri, or OEt) proceeds smoothly and the corresponding mono and di-benzoate derivatives, (C6H5COO)Ti(OR)3 and (C6H5COO)2Ti(OR)2, are formed quantitatively. The substitution of third alkoxy group proceeds slowly and the tri-benzoate derivative, (C6H5COO)3Ti(OR), is less stable decomposing into titanyl benzoate, (C6H5COO)2Ti=O, and corresponding ester, C6H5COOR. The course of reaction appears to be unaffected even in presence of excess benzoic acid (more than 4 moles). The reactions have been carried out in benzene medium and have been followed by estimating the alcohol removed in the azeotrope, analysis of products of reaction and isolation of esters produced as a result of decomposition of the tri-benzoate derivatives.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/prac.19590080314
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