𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Base-catalyzed intramolecular heterocyclization of o-alkynylbenzhydrazides

✍ Scribed by T. F. Mikhailovskaya; S. F. Vasilevsky


Book ID
106521581
Publisher
Springer
Year
2010
Tongue
English
Weight
270 KB
Volume
59
Category
Article
ISSN
1573-9171

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Base-catalyzed intramolecular condensati
✍ MarΓ­a Yolanda Rios; Guillermo Delgado; Georgina Espinosa-PΓ©rez πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 French βš– 227 KB

Treatment of diligustilide (I) with base afforded the pentacyclic compounds 2 -4 with novel carbon-carbon connectivities via lactone-ring opening, intramolecutar condensations and competitive equilibrations. This reaction provides a useful entry to modified dimeric phthalides.

Base-catalyzed intramolecular condensati
✍ Beatriz Quiroz-Garcı́a; Liliana HernΓ‘ndez; RubΓ©n A. Toscano; Olov Sterner; Guill πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 French βš– 175 KB

The novel pentacyclic compound cyclotokinolide B was obtained from the natural phthalide tokinolide B under basic conditions, via the chemoselective g-enol lactone opening followed by a Michael addition of the generated carbanion to the enone and subsequent equilibration. This result confirms that s

Synthesis of nitrogen heterocycles via p
✍ Richard C. Larock; Srinivasan Babu πŸ“‚ Article πŸ“… 1987 πŸ› Elsevier Science 🌐 French βš– 224 KB

Catalytic amounts of Pd(OAc)2 in the presence of c-Bu4NC1, OMF and an appropriate Et3N) cyclize nitrogen-containing o-lodoaryl alkenes to indoles, quinolines, isoquinolines and isoquTnolones in short reaction times, under mild temperatures, and in high yields. Transition metal reagents have proven h