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

ISBN-10: 0120206269

ISBN-13: 9780120206261

(from preface)Volume 26 comprises 3 chapters. C.A.Ramsden reports heterocy-clic betaines derived from 6-membered heteroaromatic earrings. those compounds were intensively studied during the last 10 years and feature now not formerly been comprehensively reviewed. O. Meth-Cohn and B. Tarnowski summarize the chemistry of the thiocoumarins, a a bit of overlooked staff of heterocycles. eventually, W. Friedrichsen has reviewed the chemistry of the benzo[r]furans which, not like the aza and thia analogs, haven't formerly been thought of during this sequence. the following back we have now a gaggle of compounds the chemistry of which has complex significantly during the last decade.

Show description

Read or Download Advances in Heterocyclic Chemistry, Vol. 26 PDF

Best chemistry books

Download e-book for iPad: How to Live Longer and Feel Better by Linus Pauling

How you can stay Longer and think larger attracts on two-time Nobel prize winner Linus Pauling's great medical wisdom and many logic. the result's a remarkably useful plan for including years on your lifestyles.

Download e-book for iPad: Polymer Adsorption and Dispersion Stability by E. D., And B. Vincent, (Editors); Goddard

Content material: Polymers in disperse structures : an summary / B. Vincent -- assessment of a macroscopic version for polymer adsorption / R. Hogg -- Ellipsometric examine of adsorption of polyelectrolyte onto a steel floor / A. Takahashi, M. Kawaguchi, ok. Hayashi, and T. Kato -- The function of the solvent in polymer adsorption : displacement and solvency results / M.

Get Structure of Molecules and the Chemical Bond PDF

In the past twenty 5 years our wisdom of the constitution and homes of atoms and molecules has been elevated significantly by means of the growth made in either the theoretical and experimental tools of method of the issues concerned. The advent of wave mechanics has approved the improvement of theories of atomic and molecular constitution that have put on a theoretical foundation such basic thoughts because the spatial configuration of atomic orbitali, the character and directional features of bonds among atoms in molecules and the mechanism of chemical reactions.

Additional resources for Advances in Heterocyclic Chemistry, Vol. 26

Example text

Cbeni. , 770 (1975). N. Dennis, A. R . Katritzky, and H . Wilde, J. C . , Ptrkin I , 2338 (1976). 62 J . Banerji, N. Dennis, A. R. Katritzky. R. L. Harlow. and S . H. Simonsen. J . Cbem. Res. 38 (1977); J. Cbrni. R P . 517 (1977). 6 3 T. Lierum and K. Undheim. Actu Cbetn. S c u d . , Ser. -0. Ranger, G . A. Ulsaker, and K. ,70. 64 A. Mori, S. Ohta, and H. Takeshita. Heterocycles 2,243 (1974); H. Takeshita, A. Mori, and S. Ohta, Bull. Cbem. Soc. Jpn. 47, 2437 (1974). 6 5 A. R. Katritzky and Y .

Typically, acrylonitrile gives compound 181 (R = C6H11, R' = R3 = R4 = H, R' = CN). Other olefinic 1,3-dipolarophiles that have been used are N-phenylmaleimide, dimethyl fumarate, cyclohexene, norbornene, and norbornadiene. The exclusive formation of endo adducts (181; R' = R3 = H) may be due to the bulky N-substituent. In a similar manner acetylenes give 1,3-dipolar cycloadducts : dimethyl acetylenedicarboxylate gives 182 (R = C6Hll, R' = RZ = C0,Me); methyl propiolate gives mainly 182 (R = C,Hll, R1 = H, R' = C0,Me); methyl phenylpropiolate gives a mixture of stereoisomeric adducts (182; R = C6H, 1, R' = C0,Me or Ph, R' = Ph or C0,Me); and benzyne gives compound 183.

Takeshita. Heterocycles 2,243 (1974); H. Takeshita, A. Mori, and S. Ohta, Bull. Cbem. Soc. Jpn. 47, 2437 (1974). 6 5 A. R. Katritzky and Y . Takeuchi, J . A m . Chem. Soc. 4134 (1970). 66 A. R. Katritzky and Y. Takeuchi, J. Cheni. Soc. c', 878 (1971). 67 N. Dennis, A. R. Katritzky, S. K. Parton. Y . Nomura, Y. Takahashi, and Y . Takeuchi, J . C . , Perkin I , 2289 (1976). 6o 61 22 CHRISTOPHER A. RAMSDEN [Sec. 69 Iiii (113) SCHEME5. Reagents: i, RC-CH; (114) (115) ii, RCH=CH,; iii, MeI; iv, Ag,O or NaHCO,.

Download PDF sample

Advances in Heterocyclic Chemistry, Vol. 26 by A.R. Katritzky, A.J. Boulton (Eds.)


by Jeff
4.0

Rated 4.73 of 5 – based on 37 votes