Method for chlorinating the carboxylic group of...

Details Method for chlorinating the carboxylic group of... Method for chlorinating the carboxylic group of...

C - Chemistry, Metallurgy

07

C

260/539.2, 260/5

C07C 51/60 (2006.01)

Patent

CA 1133011

"IMPROVED METHOD FOR CHLORINATING THE CARBOXYLIC GROUP OF .alpha.-AMINOACIDS" Abstract of the disclosure A method for chlorinating the carboxylic group of .alpha.- aminoacids (e.g. hydroxyphenyl-glycine) is described wherein the aminoacid is suspended in an optionally solvate- forming solvent, treated with an excess of gaseous HCl and then with a chlorinating agent having the general formula [SOaCl2.R1R2NCHO] (e-g. SO Cl2.(CH3)2NcHo). A typical compound thus obtained is the dioxane hemisolvate of D(-)2-(p-hydroxyphenyl)glycyl chloride hydrochloride. - 1 -

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