... Download full text in PDF. Tetrahedron Letters Vol. 21, Pp 1967 - 1970 0040-4039/80/0502-' _967$02.00/0 Pergamon Press Ltd. 1980. Printed in Great Britain a-CARBOXYLATION REACTION OF CARBONYL COMPOUNDS WITH BROMOMAGNESIUM UREIDE-CARBON DIOXIDE ADDUCTS Hideki Sakurai, Akihiko Shirahata, and Akira Hosomi Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan Summary ...