✦ LIBER ✦

A direct synthesis of substituted thiophenes via α-oxoketene dithioacetals. II.

✍ Scribed by J.P. Marino; J.L. Kostusyk

Publisher: Elsevier Science
Year: 1979
Tongue: French
Weight: 195 KB
Volume: 20
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)86329-2

No coin nor oath required. For personal study only.

✦ Synopsis

The regioselective deprotonation of S,S-dimsthyl-a-oxoketene dithioacetal at the (Z)-S-methyl group leads to a direct synthesis of 2-S-methyl-3,4-disubstituted thiophenes.

📜 SIMILAR VOLUMES

Junjappa-Ila annulation: α-Oxoketene dit

Junjappa-Ila annulation: α-Oxoketene dithioacetal mediated synthesis of substituted benzotriazoles

✍ Nitinkumar S. Shetty; Ravi S. Lamani; Shridhar I. Panchamukhi; Imtiyaz Ahmed M. 📂 Article 📅 2009 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 67 KB

## Abstract magnified image 2‐(1‐Benzyl‐1__H__–1,2,3‐triazole‐4‐yl)‐3‐methylsulfanyl‐5‐oxo‐5‐substituted‐__pent__‐2‐enenitrile **3a**, **3b**, **3c**, **3d**, **3e** were obtained in good yields by condensation of (1‐benzyl‐1__H__‐1,2,3‐triazole‐4‐yl)acetonitrile **1** with various α‐oxoketene dit

Attempted Simmons-Smith reaction on α-ox

Attempted Simmons-Smith reaction on α-oxoketene dithioacetals: A new general route to 3,4-substituted and annelated thiophenes

✍ Abraham Thomas; Gurdeep Singh; Hiriyakkanavar Ila; Hiriyakkanavar Junjappa 📂 Article 📅 1989 🏛 Elsevier Science 🌐 French ⚖ 231 KB

ChemInform Abstract: Junjappa—Ila Annula

ChemInform Abstract: Junjappa—Ila Annulation: α-Oxoketene Dithioacetal Mediated Synthesis of Substituted Benzotriazoles.

✍ Nitinkumar S. Shetty; Ravi S. Lamani; Shridhar I. Panchamukhi; Imtiyaz Ahmed M. 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 28 KB

ChemInform Abstract: α-Oxoketene Dithioa

ChemInform Abstract: α-Oxoketene Dithioacetals Mediated Benzoanellation of Aromatic Heterocycles: An Efficient Regiocontrolled Synthesis of Highly Substituted and Polycyclic Benzo[b]thiophenes.

✍ J. R. Suresh; Okram Barun; H. Ila; H. Junjappa 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 36 KB 👁 1 views

Junjappa-IIa (JI) Heteroaromatic Annulat

Junjappa-IIa (JI) Heteroaromatic Annulation: A New General α-Oxoketene Dithioacetals Mediated Inverse Method for Synthesis of Substituted Benzothiazoles.

✍ Vinayak S. Hegde; Gundurao D. Kolavi; Imtiyaz Ahmed M. Khazi 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 23 KB

α-Oxoketene Dithioacetals Mediated Heter

α-Oxoketene Dithioacetals Mediated Heteroaromatic Annulation Protocol for Benzoheterocycles: An Efficient Regiocontrolled Synthesis of Highly Substituted and Annulated Indazoles.

✍ S. Peruncheralathan; T. A. Khan; H. Ila; H. Junjappa 📂 Article 📅 2004 🏛 John Wiley and Sons ⚖ 234 KB 👁 1 views