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Methylation of polysaccharides with dimethyl sulfate

✍ Scribed by H.C. Srivastava; Prem Pal Singh; S.N. Harshe; K. Virk


Publisher
Elsevier Science
Year
1964
Tongue
French
Weight
270 KB
Volume
5
Category
Article
ISSN
0040-4039

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✦ Synopsis


The recant publ&cations by Kuhn and c0-uorkars(*~3~~ * methyD&ion of carbohydrates usingdimetbylsulfata, dimtbyl ati-@IEN) andbarilnoxlde and/orbariumh@roxldepromptsuato raport similar work whichwe have [email protected] out In this Laboratory sinultaueouslyandindependeM2y.

In the earlier studies on met&yl.ation of carb&ydrates( ~~5jwe have shoun that sugars, oligosaccbarides and most ImportarMy, polyaaccharldes can be methylatad by diseolv%ng them in Dwso aM treating the solutiona ~5th methyl iodids in pr%senoa of silw orids l This paper constitutee Part III of the series on Carbohwata Mthylatione. * K. Mkllenfels, G. Rechtler, Ft. Kuhn, Ii. Trischmnn and B. l&m, kIg8U. cha?A. iInt* edn.), z& As 3 R.Kuhn andR.Trischmann, chap.


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Microwave promoted methylation of plant
✍ Vandana Singh; Ashutosh Tiwari; Devendra Narayan Tripathi; Tulika Malviya πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 French βš– 118 KB

O-Methylation is of outstanding importance in structural polysaccharide chemistry. A novel method for the methylation of polysaccharides using microwave (MW) irradiation is described. Seed gum from Cyamopsis tetragonolobus (Guar) was fully methylated with dimethyl sulphate and sodium hydroxide using