Title of article
An efficient synthesis of some thiopyranopyrazole-heterocycles via domino reaction in a Brّnsted acidic ionic liquid
Author/Authors
Parmar، نويسنده , , Narsidas J. and Parmar، نويسنده , , Bhagyashri D. and Sutariya، نويسنده , , Tushar R. and Kant، نويسنده , , Rajni and Gupta، نويسنده , , Vivek K.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2014
Pages
5
From page
6060
To page
6064
Abstract
The thiopyrazole gave many new polycyclic thiopyranopyrazole-heterocycles when it was assembled with a variety of O-alkenylated/alkynylated salicylaldehydes and naphthaldehydes in Brønsted acidic ionic liquid, [Hmim]HSO4, via domino/Knoevenagel–hetero-Diels–Alder (DKHDA) reaction. The reaction is highly stereoselective and the work-up procedure required no chromatography of products in many cases.
Keywords
Pyarazole-5-thione , 3-c]pyrazole , Knoevenagel–hetero-Diels–Alder
Journal title
Tetrahedron Letters
Serial Year
2014
Journal title
Tetrahedron Letters
Record number
1891059
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