Book ChapterDOI
3.04 – Pyrroles and their Benzo Derivatives: (i) Structure
D.J. Chadwick
- Vol. 3, pp 155-200
About:
The article was published on 1984-01-01. It has received 15 citations till now.read more
Citations
More filters
Journal ArticleDOI
Novel stereoselective syntheses of highly functionalized benzannulated pyrrolizidines and indolizidines by samarium diiodide induced cyclizations of indole derivatives.
TL;DR: Indole and pyrrole derivatives are excellent acceptor units for intramolecular couplings of samarium ketyls and furnish highly functionalized indole derivatives with very good diastereoselectivities additionally.
Journal ArticleDOI
Synthesis of Polysubstituted Pyrroles through a Formal [4 + 1] Cycloaddition/E1cb Elimination/Aromatization Sequence of Sulfur Ylides and α,β-Unsaturated Imines
TL;DR: A reaction sequence comprising a formal [4 + 1] cycloaddition, an E1cb elimination, and an aromatization process is described, achieving polysubstituted pyrroles from easily available chemicals, sulfur ylides, and α,β-unsaturated imines.
Journal ArticleDOI
Quantitative first principles calculations of protein circular dichroism in the near-ultraviolet
Zhuo Li,Jonathan D. Hirst +1 more
TL;DR: Including the vibrational structure of the electronic transitions of aromatic groups allows quantitative calculation of protein near-UV circular dichroism.
Journal ArticleDOI
Preparation of 3‐hydroxyisoindolin‐1‐ones and o‐acylbenzamides. A study of ring‐chain tautomerism
Takehiko Nishio,Hiroshi Yamamoto +1 more
TL;DR: In this paper, 3-hydroxyisoindolinones (ring form) as well as their chain tautomers, o-acylbenzamides, were prepared from the reactions of 3-benzalphthalide 1, 3-halophthalides 3, and oacyl-benzoic acids 6 or their esters 7 with amines 2, and those of phthalimides 4 with Grignard reagents 5.
Journal ArticleDOI
Five-Membered 2-Methylene-2,3-dihydro Heterocycles from Ruthenium Butatrienylidene Intermediates and 2-(Dimethylamino)methyl-Substituted Furans, Thiophenes, and Selenophenes
TL;DR: Trapping of the primary butatrienylidene intermediate trans-[Cl(dppm) 2 Ru=C=C =C=CH 2 ] + with five-membered 2-(dimethylamino)methyl-substituted heterocycles provides an easy and efficient route to aminoallenylidsene complexes with appended 2-methylene-2,3-dihydrofuran, -thiophene, or -selenophene moieties.
References
More filters
Journal ArticleDOI
Ground States of Molecules. 38. The MNDO Method. Approximations and Parameters
Michael J. S. Dewar,Walter Thiel +1 more
Journal ArticleDOI
An intermediate neglect of differential overlap technique for spectroscopy: Pyrrole and the azines
Joan E. Ridley,Michael C. Zerner +1 more
TL;DR: An LCAO-MO-SCF-CI model based on the lines introduced by Del Bene and Jaffe is developed in this article that is capable of reproducing the better identified observed spectra of nitrogen heterocycles with a rms error of ∼ 1000 cm−1.