Pyridinium p-Toluenesulfonate: A Mild and Efficient Catalyst for The Regioselective Tetrahydropyranylation of Indazole Derivatives Under Solvent-Free Conditions

Suresh Thatipally; Palle V.R. Acharyulu; P. K. Dubey

Issue

Vol. 23 No. 1 (2011): Vol 23 Issue 1

Issue Published : 10 September 2010

Pyridinium p-Toluenesulfonate: A Mild and Efficient Catalyst for The Regioselective Tetrahydropyranylation of Indazole Derivatives Under Solvent-Free Conditions

Suresh Thatipally

Aptuit Laurus, Shamerpet, Turkapally, Hyderabad-500 078, India

Palle V.R. Acharyulu

Ecologics Pvt. Ltd., ALEAP, Plot No. 5, Pragathi Nagar, Hyderabad-500 072, India

P. K. Dubey

Department of Chemistry, College of Engineering, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad-500 085, India

Corresponding Author(s) : P. K. Dubey

thatipally5@gmail.com

Asian Journal of Chemistry, Vol. 23 No. 1 (2011): Vol 23 Issue 1
Article Published : 24 September 2010

Abstract

An efficient and regioselective tetrahydropyranyl (THP) protection on substituted 1H-indazoles in solution phase as well as under solvent-free conditions catalyzed by microwave irradiation in the presence of pyridinium p-toluenesulfonate (PPTS) as mild catalyst.

Keywords

Substituted 1H-indazoles Regioselective tetrahydropyranyl ether-protection Pyridinium p-toluenesulfonate Solution phase Solvent-free conditions

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Thatipally, S.; V.R. Acharyulu, P.; K. Dubey, P. Pyridinium P-Toluenesulfonate: A Mild and Efficient Catalyst for The Regioselective Tetrahydropyranylation of Indazole Derivatives Under Solvent-Free Conditions. ajc 2010, 23, 451-454.

Issue

Vol. 23 No. 1 (2011): Vol 23 Issue 1

Pyridinium p-Toluenesulfonate: A Mild and Efficient Catalyst for The Regioselective Tetrahydropyranylation of Indazole Derivatives Under Solvent-Free Conditions

Corresponding Author(s) : P. K. Dubey

Abstract

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