in further solvent(s)
addition of the grignard compound to the ester (solution in n-butyl ether) at -50°C, stirring at -40°C, 24 hours, warming to 20°C within 24 hours and stirring for 24 hours;;
Frostick; Hauser
Journal of the American Chemical Society, 1949 , vol. 71, p. 1351,1352
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Hauser; Walker
Journal of the American Chemical Society, 1947 , vol. 69, p. 120