Lesquerolic Acid. A New Hydroxy Acid from Lesquerella Seed Oil<sup>1a</sup>
作者:C. R. SMITH、T. L. WILSON、T. K. MIWA、H. ZOBEL、R. L. LOHMAR、I. A. WOLFF
DOI:10.1021/jo01066a067
日期:1961.8
The synthesis of (+)-14-d-hydroxy--11-eicosenoic (lesquerolic) acid
作者:Thomas H. Applewhite
DOI:10.1016/s0040-4039(00)71074-4
日期:1965.1
Increased selectivity in the formation of the phenoxy ether of methyl lesquerolate over chloroalkyl-modified SBA-15-SO3H catalysts☆
作者:Michael A. Jackson、Michael Appell
DOI:10.1016/j.apcata.2009.11.002
日期:2010.1.31
A novel synthetic catalysis was developed for selective modification of useful bioproducts from the oil of Lesquerella fendlerii, an agricultural commodity of increasing importance. Modification of the surface of the solid acid catalyst SBA-15-SO3H with the chloroalkyl groups CH2CH2Cl, has improved the selectivity in the synthesis of the phenoxy ether of methyl 14-hydroxy-11-eicosenoate (methyl lesquerolate). A series of catalysts, SBA-15(EtCl)(x)SO3H where x = 0. 2, 4. 8, have been prepared and characterized by C-13 CPNMR, surface properties, and elemental analyses. Selectivity increased with increased loading of the chloroalkyl group. This selectivity can be attributed to the decrease in the rate of conversion of the phenoxy ether to the Friedel-Crafts adducts. This study demonstrates synthetic approaches can develop novel catalysts to increase yields and selectivity for value-added bioproducts from new crops. Published by Elsevier B.V.