Reddy, Ch. K.; Reddy, P. S. N.; Ratnam, C. V., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 882 - 883
作者:Gregory L. Beutner、Yi Hsiao、Thomas Razler、Eric M. Simmons、William Wertjes
DOI:10.1021/acs.orglett.7b00052
日期:2017.3.3
A nickel(0)-catalyzed method for the synthesis of quinazolinediones from isatoic anhydrides and isocyanates is described. High-throughput ligand screening revealed that XANTPHOS was the optimal ligand for this transformation. Subsequent optimization studies, supported by kinetic analysis, significantly expanded the reaction scope. The reaction exhibits a case of substrate inhibition kinetics with respect to the isocyanate. Preliminary results on an asymmetric synthesis of atropisomeric quinazolinediones are reported.
REDDY, CH. K.;REDDY, P. S. N.;RATNAM, C. V., INDIAN J. CHEM., 26,(1987) N 9, 882-883