Incorporation of molecular nitrogen into organic compounds. 2. Novel lactam synthesis by use of a combination system of carbonylation and nitrogenation
prepared from o-haloacetophenone derivatives 15 by palladium-catalyzed carbonylation, react with the titaniumisocyanate complex [3THF·Mg2Cl2OTiNCO] (1) generated by fixation of CO2 with titaniumnitrogen complex [TiNMg2Cl2·THF] to give the isoindolinone derivatives 8 in good yields.