Stereochemistry of Diphenyls. XXXII. 1 Preparation and Properties of Certain 2, 2', 6, 6'-Tetramethoxydiphenyls

AM VanArendonk, ME Cupery…

Index: VanArendonk; Cupery; Adams Journal of the American Chemical Society, 1933 , vol. 55, p. 4225,4227

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Citation Number: 16

Abstract

Oct., 1933 STEREOCHEMISTRY OF DIPHENYLS. XXXII 4225 ... Copper Bronze.-Ordinary copper bronze sometimes gave very satisfactory and sometimes very poor results in the Ullmann condensation. A simple treatment of the commercial copper bronze made possible more uniform results and frequently made possible a more rapid reaction at a lower temperature. The copper bronze was treated with a 2% solution of iodine in acetone for about five to ten minutes. ...