By A.R. Katritzky, A.J. Boulton (Eds.)
(from preface)The 9th quantity of Advances in Heterocyclic Chemistry comprises surveys of the chemistry of the subsequent teams of heterocyclic compounds: 1,2,5-thiadiazoles (L. M. Weinstock and P. I. Pollack); 1,3,4-thiadiazoles (J. Sandstrom); pyridazines (M. Tisler and B. Stanovnik); Reissert compounds (F. D. Popp); phenothiazines (C. Bodea and that i. Silberg); and pyrrolopyridines (R. E. Willette).Suggestions are welcomed for contributions to destiny volumes; they need to be within the kind of brief synopses.Thanks are as a result Editorial Board, the writer, and the authors for his or her cooperation.
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Extra resources for Advances in Heterocyclic Chemistry, Vol. 9
50 to 90 %. 36 R. E. WILLETTE [SEC. 111. c. Sus and M611er3O reported yields of 46, 57, and 70 yo,respectively, for the first three steps starting from the 1,5-naphthyridine (17), but did not give a yield for the 4-aza acid (18), which was isolated as the hydrochloride. They state that attempts t o decarboxylate this salt [sic]met with difficulty, and work was continuing. Unfortunately, the following 32 do not report the decarboxylation. 32The 7-aza diacid (24, Scheme 3) decarboxylated in 75 yo yield.
Moller, in ‘Methoden der organischen Chemie” (J. Houben and T. ), Vol. 11, Part I, p. 9. Thieme, Stuttgart, 1957. 9 W. Lawson, W. H. , and R. Robinson, J . Chem. SOC. 125, 626 4 5 (1924). M. Patterson, L. T. Capell, and D. F. , p. 166. Am. Chem. , 1960. 10 A. A. loa The editors of the Journal of the Chemical Xociety prefer to use the diazaindene nomenclature, according to which compound 2 is 1,7diazaindene, etc. I n the present review the azaindole nomenclature is used. I n addition to being the most widely adopted and more concise, i t lends to a more convenient method of naming azalogs of known compounds, such as 7-azatryptophan.
Spatz and F. D. Popp, unpublished results (1967). ~~ The " Reissert reaction " with quinoline- 1-oxide which was noted in the previous review' has now been extended to a number of additional heterocyclic N-oxides but is considered t o be beyond the scope of this review. Okamoto, M. Hirobe, and T. Yamazaki, Chem. & Pharm. Bull. (Tokyo) 14, 512 (1966). 63 T. This Page Intentionally Left Blank Monoazaindoles : The Pyrrolopyridines R . E. WILLETTE School of Pharmacy, The University of Connecticut, Storm, Connecticut I.