Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/14645
Title: One-pot synthesis of coumarin substituted dihydrofurans
Authors: Chunduru, Venkata Sreenivasa Rao
Vedula, Rajeswar Rao
Keywords: 3-(2-Bromoacetyl)coumarins
<i style="mso-bidi-font-style:normal"><span style="font-size:12.0pt;font-family:"Times New Roman";mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB;mso-fareast-language:EN-US; mso-bidi-language:AR-SA" lang="EN-GB">Trans</span></i><span style="font-size: 12.0pt;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman"; mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-GB">-2,3-<span style="font-size:12.0pt;mso-bidi-font-size:9.0pt;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-GB;mso-fareast-language: EN-US;mso-bidi-language:AR-SA" lang="EN-GB">dihydrofurans</span></span>
Pyridinum ylides
One-pot reaction
Issue Date: Sep-2012
Publisher: NISCAIR-CSIR, India
Abstract: A sequential one-pot two-step tandem reaction for an efficient synthesis of 2,3-dihydrofurans substituted with 2<i style="mso-bidi-font-style:normal">H</i>-benzopyrans has been developed. One-pot reaction of <i style="mso-bidi-font-style:normal">in situ</i> formed benzopyran substituted pyridinium ylides with aromatic aldehydes and dimedone gives corresponding 2,3-dihydrofurans in good yields. The structures of the final compounds have been assigned as <i style="mso-bidi-font-style: normal">trans</i>-2,3-dihydrofurans on the basis of their NMR spectra.
Description: 1417-1420
URI: http://hdl.handle.net/123456789/14645
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.51B(09) [September 2012]

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