Skip to main content
Log in

Methylation of hydroxy flavonols using methyl iodide and potassium carbonate

  • Published:
Proceedings of the Indian Academy of Sciences - Section A Aims and scope Submit manuscript

Summary

By the action of methyl iodide and potassium carbonate, quercetin underwent complete methylation, while herbacetin and gossypetin yielded 3∶7∶8∶4′-tetramethyl ether and 3∶7∶8∶3′∶4′-pentamethyl ether respectively. This reagent, therefore, resembles diazomethane in the methylation of the naturally occurring flavonols.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Suryaprakasa Rao and SeshadriProc. Ind. Acad. Sci., 1939,9, 177;ibid., Proc. Ind. Acad. Sci., 1939,9, 365;Curr. Sci., 1939,8, 265.

    Google Scholar 

  2. Robertson, Robinson and StruthersJ. C. S., 1928, 1457.

  3. King and RobertsonIbid., J. C. S., 1931, 1707.

  4. Rangaswami, Seshadri and VeeraraghaviahProc. Ind. Acad. Sci., 1939,9, 328.

    Google Scholar 

  5. —, Suryaprakasa Rao and SeshadriIbid.,, 1939,9, 133.

    Google Scholar 

  6. HerzigMonatsh, 1912,33, 683–99.

    Article  Google Scholar 

  7. The Quercetin nucleus gets completely methylated in several of its glycosides. Herzig and Schönbach,Monatsh, 1912,33, 673–81; Attree and Perkin,J.C.S., 1927; 234.

    Article  Google Scholar 

  8. Gomm and NierensteinJ. A. C. S., 1931, 4408.

  9. Suryaprakasa Rao and SeshadriCurr. Sci., 1939,8, 256.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Rao, P.S., Reddy, P.P. & Seshadri, T.R. Methylation of hydroxy flavonols using methyl iodide and potassium carbonate. Proc. Indian Acad. Sci. (Math. Sci.) 12, 495 (1940). https://doi.org/10.1007/BF03170712

Download citation

  • Received:

  • DOI: https://doi.org/10.1007/BF03170712

Keywords

Navigation