Download Advances in Heterocyclic Chemistry, Vol. 9 by A.R. Katritzky, A.J. Boulton (Eds.) PDF

By A.R. Katritzky, A.J. Boulton (Eds.)

(from preface)The 9th quantity of Advances in Heterocyclic Chemistry contains surveys of the chemistry of the next 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 a result of 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

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33 A similar mechanism can be used for the formation of 30. It is of interest to note that in this case reaction of the anion (19) of the quinoline Reissert compound takes place in the 2-position. A wide 30,33-39 ranging from f ~ r m a l d e h y d eto ~~ variety of aldehydes', d i a l d e h y d e ~37~ have ~ , been used. 33 The condensation of the anion of 26 with the appropriate aldehyde has played a n important part in the convenient synthesis of a number of alkaloids and alkaloid-related materials such as calycotomine (33),38papaverinol (34),sarmepavine (24),2gand 0-methyldauricine "9 H.

111. 1 13 REISSERT COMPOUNDS 0 qN 0 m - o - ( ! - C6H5 c6H5 H-C-0-C- I1 C6H5 I CBH5 (30) (29) benzene34 or sodium hydride in dimethylformamide a t room temperaturez7)gave 30. 33 A similar mechanism can be used for the formation of 30. It is of interest to note that in this case reaction of the anion (19) of the quinoline Reissert compound takes place in the 2-position. A wide 30,33-39 ranging from f ~ r m a l d e h y d eto ~~ variety of aldehydes', d i a l d e h y d e ~37~ have ~ , been used. 33 The condensation of the anion of 26 with the appropriate aldehyde has played a n important part in the convenient synthesis of a number of alkaloids and alkaloid-related materials such as calycotomine (33),38papaverinol (34),sarmepavine (24),2gand 0-methyldauricine "9 H.

8 11. Nomenclature Perkin and Robinson3 introduced “ pyrindole” as the first nomenclature for the fused pyrrole-pyridine system, numbering the ring as in structure 1. ” The pyrindole nomenclature persisted until KruberO introduced the aza designation for 7-azaindole (2). This is the system which has been used most frequently. The Ring Index’” and Chemical Abstracts classify the system as pyrrolopyridine, numbered as in 2. Accordingly, 4-azaindole (3) is W. H. Perkin, Jr. and R. Robinson, J . Chem.

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