Journal of Organometalltc Chemistyv, 326 (1987) C83-C85 Elsevier Sequoia SA, Lausanne - Printed in The Netherlands ... Selective formation of malonate by a double CO insertion reaction into a p-alkylidene complex of palladium ... B. Denise, D. Navarre and H. Rudler * ... Lahoratoire de Chimie Organrque, Uniuersit& Pierre et Mane Curw. UA 408. T.44, 4 Place Jussreu, 75252 Paris Cedex 05 (France) (Received January 28th. 1987) ... Whereas p-alkylidene ...