Sequential [3,3]Sigmatropic Rearrangement: Regioselective Synthesis of Dimedone‐Annulated Heterocycles

Sequential [3,3]Sigmatropic Rearrangemen

Sequential [3,3]Sigmatropic Rearrangement: Regioselective Synthesis of Dimedone-Annulated Heterocycles.

✍ K. C. Majumdar; S. K. Samanta 📂 Article 📅 2006 🏛 John Wiley and Sons ⚖ 19 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Regioselective Synthesis of Coumarin-Ann

Regioselective Synthesis of Coumarin-Annulated Polyheterocycles by [3,3] Sigmatropic Rearrangement.

✍ K. C. Majumdar; B. Chattopadhyay 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 20 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Regioselective synthesis of polyheterocy

Regioselective synthesis of polyheterocyclic scaffolds by sequential [3,3] sigmatropic rearrangements and pyridine hydrotribromide mediated heterocyclization

✍ K. C. Majumdar; S. Muhuri 📂 Article 📅 2007 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 395 KB

## Abstract magnified image A number of tetracyclic polyhetero scaffolds have been regioselectively synthesised in 70‐75% yield from 4‐[(3‐aryloxy‐2‐propynyl)oxy]‐6‐methyl‐pyran‐2‐ones __via__ thionation of the lactone carbonyl, sequential Claisen rearrangements and pyridine hydrotribromide mediat

ChemInform Abstract: Regioselective Synt

ChemInform Abstract: Regioselective Synthesis of Polyheterocyclic Scaffolds by Sequential [3,3] Sigmatropic Rearrangements and Pyridine Hydrotribromide Mediated Heterocyclization.

✍ K. C. Majumdar; S. Muhuri 📂 Article 📅 2008 🏛 John Wiley and Sons ⚖ 41 KB 👁 1 views

Regioselective synthesis of pentacyclic

Regioselective synthesis of pentacyclic heterocycles by sequential [3,3] sigmatropic rearrangement of 2-(4′-aryloxybut-2′-ynyl-mercapto)thiochromen-4-ones

✍ K.C Majumdar; A Bandyopadhyay; A Biswas 📂 Article 📅 2003 🏛 Elsevier Science 🌐 French ⚖ 156 KB

Regioselective Synthesis of Pentacyclic

Regioselective Synthesis of Pentacyclic Heterocycles by Sequential [3,3] Sigmatropic Rearrangement of 2-(4′-Aryloxybut-2′-ynyl-mercapto)thiochromen-4-ones.

✍ K. C. Majumdar; A. Bandyopadhyay; A. Biswas 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 109 KB 👁 1 views

## Abstract For Abstract see ChemInform Abstract in Full Text.