
%0 Journal Article
%A Collins, DJ 
%A Choo, GLP 
%A Obrist, H 
%T Preparation of &#946;-Keto Ester Acetals by Reaction of Ortho Esters With Ketene Silyl Acetals in the Presence of Titanium Tetrachloride
%J Australian Journal of Chemistry
%D 1990/03/01
%V 43
%N 3
%P 617-622
%K 
%R https://doi.org/10.1071/CH9900617
%U https://www.publish.csiro.au/paper/CH9900617 
%X Reaction of 2-ethoxy-2-methyl-1,3-dioxolan (1c) with 1-methoxy-1-trimethylsilyloxyethene (4a) in dichloromethane in the presence of titanium tetrachloride gave 62% of methyl 2-(2&#8242;-methyl-1&#8242;,3&#8242;-dioxolan-2&#8242;-yl)acetate (5a). Similarly, reaction of (1c) with l-methoxy-1-trimethylsilyloxyprop-1-ene (4b) afforded 73% of methyl 2-(2&#8242;-methyl-1&#8242;,3&#8242;-dioxolan-2&#8242;-yl) propanoate (5b). 
