✦ LIBER ✦

Radical cyclization of ynamides into six- or eight-membered rings. Application to the synthesis of a protoberberine analog

✍ Scribed by Sébastien Balieu; Krimo Toutah; Laura Carro; Lise-Marie Chamoreau; Hélène Rousselière; Christine Courillon

Book ID: 104099116
Publisher: Elsevier Science
Year: 2011
Tongue: French
Weight: 647 KB
Volume: 52
Category: Article
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2011.03.118

No coin nor oath required. For personal study only.

✦ Synopsis

A straightforward formation of six-and eight-membered rings via the radical cyclization of specifically designed ynamides is reported. This strategy provides a protoberberine analog in only three steps by a radical cyclization cascade.

📜 SIMILAR VOLUMES

ChemInform Abstract: Radical Cyclization

ChemInform Abstract: Radical Cyclization of Ynamides into Six- or Eight-Membered Rings. Application to the Synthesis of a Protoberberine Analogue.

✍ Sebastien Balieu; Krimo Toutah; Laura Carro; Lise-Marie Chamoreau; Helene Rousse 📂 Article 📅 2011 🏛 John Wiley and Sons ⚖ 27 KB 👁 1 views

Dehydrative Cyclization of Alkynals: Vin

Dehydrative Cyclization of Alkynals: Vinylidene Complexes with the Cβ Incorporated into Unsaturated Five- or Six-Membered Rings

✍ María Batuecas; Luz Escalante; Prof. Miguel A. Esteruelas; Dr. Cristina García-Y 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 318 KB 👁 1 views

Dehydrative Cyclization of Alkynals: Vin

Dehydrative Cyclization of Alkynals: Vinylidene Complexes with the Cβ Incorporated into Unsaturated Five- or Six-Membered Rings

✍ María Batuecas; Luz Escalante; Prof. Miguel A. Esteruelas; Dr. Cristina García-Y 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 301 KB 👁 1 views

Convenient Formation of Six- to Nine-Mem

Convenient Formation of Six- to Nine-Membered Carbocyclic Rings by 2-Pyridyl Radical Cyclization: A Generalized Synthesis of Pyridine-Fused Linear Tricyclic Systems.

✍ Sarbendu Maiti; Michael G. B. Drew; Ranjan Mukhopadhyay; Basudeh Achari; Asish K 📂 Article 📅 2006 🏛 John Wiley and Sons ⚖ 27 KB 👁 1 views

ChemInform Abstract: Radical Cyclization

ChemInform Abstract: Radical Cyclization in Heterocycle Synthesis. Part 12. Sulfanyl Radical Addition—Addition—Cyclization (SRAAC) of Unbranched Diynes and Its Application to the Synthesis of A-Ring Fragment of 1α,25-Dihydroxyvitamin D3.

✍ Okiko Miyata; Emi Nakajima; Takeaki Naito 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 38 KB 👁 2 views

A Novel Ring-Enlargement Reaction of (3-

A Novel Ring-Enlargement Reaction of (3-Oxa-2-silacyclopentyl)methyl Radicals into 4-Oxa-3-silacyclohexyl Radicals. Stereoselective Introduction of a Hydroxyethyl Group via Unusual 6- Endo -Cyclization Products Derived from 3-Oxa-4-silahexenyl Radicals and Its Application to the Synthesis of a 4‘-α-Branched Nucleoside 1

✍ Shuto, Satoshi; Kanazaki, Makiko; Ichikawa, Satoshi; Matsuda, Akira 📂 Article 📅 1997 🏛 American Chemical Society 🌐 English ⚖ 169 KB