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References and Notes(1) (a) Taken in part from the Ph.D. dissertation of W.L. M., Fordham University, 1974. (b) Some of the photochemical results were the subject of a preliminary communication: W. L. Mandella and R. W. Franck, J. Amer. Chern. SOC., 95,97111973). (2) (a) For a review, see E. E. van Tamelen, Accounts Chem. Res., 5, 188 (1972): (b) E. E. van Tamelen and S. Amer. Chem. SOC., 93, 3782 (1971).(4) For a review of naphthalene photochemistry, see ref l a .(5) H. Hart and A. Oku, J. Org. Chem., 37, 4269 (1972); J. Chem. SOC. 0, 254 (1972). The unstrained 1,3-di-fert-butylnaphthalene is a stable product of a novel photocycloreversion; J. H. Boyer and K. G. Srinivasan, J.Chem SOC. 4 699 (1973).(6) Details of the preparation of the (a) tri-tert-butylnaphthalene (12) are reported in Several polycyclic aromatic hydrocarbon derivatives provide infrared fluorescence quantum yields on the order of 0.30 in solution. The infrared fluorescers were combined with a peroxyoxalate chemiluminescent system based on bis(2,4,6-trichlorophenyl) oxalate to provide solution-phase infrared chemiluminescence with quantum yields as high as 0.06 einstein mol-l. The effect of fluorescer concentration on chemiluminescence quantum yield indicated the theoretical maximum yield of excited emitter to be 49% with the fluorescer 16,17-dihexyloxyviolanthrone. Theoretical considerations relating to infrared fluorescence and chemiluminescence are discussed. T h e carbomethoxylation o f several u-bonded organomercurials (derived f r o m the oxymercuration o f cyclohexene and norbornadiene) in the presence of stoichiometric amounts of lithium tetrachloropalladate a n d carbon monoxide was found t o proceed w i t h predominant retention of configuration a t carbon. Since the carbomethoxylation o f alkylpalladium compounds occurs w i t h complete retention o f configuration a t carbon, therefore the exchange o f palladium for mercury occurs w i t h predominant retention o f configuration.

A new procedure for making 2,3‐quinolinedicarboxylic acid (6), starting with aniline and maleic anhydride has been developed. Evidence for the formation of 2‐anilino‐3‐formyl‐N‐phenylmaleimide (7) in the cyclization of S‐phenylimino‐4‐dimethylaminomethylene‐N‐phenylsuccinimide (4a) to N‐phenylacridinimide (5a) is presented.

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