Download PDF by : Acid Derivatives: Volume 2 (1979)

ISBN-10: 0470771593

ISBN-13: 9780470771594

ISBN-10: 0471996114

ISBN-13: 9780471996118

Content:
Chapter 12 Radiation chemistry of acids, esters, anhydrides, lactones and lactams (pages 755–780): O. I. Micic and O. S. Gal
Chapter thirteen The electrochemistry of carboxylic acids and derivatives: Cathodic savings (pages 781–824): James P. Coleman
Chapter 14 Decarbonylation reactions of acid halides and aldehydes by means of chlorotris?(triphenylphosphine)rhodium(i) (pages 825–857): M. C. Baird
Chapter 15 Pyrolysis of acids and their derivatives (pages 859–914): R. Taylor
Chapter sixteen Transcarboxylation reactions of salts of fragrant carboxylic acids (pages 915–944): Josef Ratusky
Chapter 17 Micellar results upon deacylation (pages 945–1020): C. A. Bunton and L. S. Romsted
Chapter 18 The chemistry of thio acid derivatives (pages 1021–1062): J. Voss
Chapter 19 The synthesis of lactones and lactams (pages 1063–1330): James F. Wolfe and Michael A. Ogliaruso

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2 mole) and the products isolated. Isolated yields of aldehydes were typically 10--20% lower than the figures obtained from polarographic analysis. 7 V (vs SCE), but the reduction is more complicated than in the (15) imidazole series. Reduction at the first wave gave only a 25% yield of the aldehyde, and other unidentified products were formed. The nature of the second reduction was not elucidated, but reduction of the heterocyclic nucleus was mentioned as a possibility. Brown and coworkers66 set out to synthesize the b.

782 782 782 784 784 790 792 794 794 797 799 800 800 800 801 801 801 804 805 805 806 806 808 810 813 813 813 814 817 818 820 821 821 78 2 James P. Coleman 1. INTRODUCTION The past fifteen years have seen a tremendous expansion in the area of organic electrochemistry. With the advent of readily available, and relatively inexpensive, electronic equipment for carrying o u t electrochemical experiments, synthetic and physical organic chemists have gradually adopted electrochemical techniques for both synthetic and mechanistic organic studies.

40 for reduction t o occur under these conditions. A better correlation exists between yields and polarographic half-wave potentials of the methyl esters of the acids. 20 (vs. SCE), then reduction of the acid is likely t o be very inefficient. The aldehyde hydration equilibria and efficiency of extraction of the aldehyde into benzene are such that very little alcohol was formed in any of these reactions. In an experiment taken t o 50% conversion of salicylic acid an 80% chemical yield of salicylaldehyde and only 4% of the alcohol, saligenin were obtained.

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Acid Derivatives: Volume 2 (1979)


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