Radical initiated fragmentation and cyclization reactions

ปฏิกิริยาการเปิดและปิดวงแหวนโดยเริ่มจากแรดิคัล

Name: Pornpun Rattananakin

LCSH: Radicals (Chemistry)

LCSH: Ring formation (Chemistry)

Abstract: Fragmentation of α-halosulfonyl cycloalkanol via radical were investigated. Three different reagents were employed i.e.: 1. α-Sulfonyl cyclobutyl carbinyl radicals could be generated by Tri-n -butyltin hydride (TBTH)/AIBN/benzene to give the fragmentation products and the radical formed by fragmentation could be trapped with acrylonitrile. 2. Alkoxy radicals could be generated by [bis(trifluoroacetoxy)iodo]benzene (BTFIB)/I(,2) or (diacetoxyiodo)benzene (DAIB)/I(,2) to give the fragmentation products or undergo intramolecular cyclization on olefinic side chains to give cyclic ethers. These reactions are useful synthetically for the preparation of highly functionalized acyclic intermediates and cyclic ether (Schemes A and B).

Mahidol University. Mahidol University Library and Knowledge Center

Address: NAKHONPATHOM

Email: liwww@mahidol.ac.th

Name: Vichai Reutrakul

Role: Thesis Advisors

Name: Manat Pohmakotr

Role: Thesis Advisors

Name: Patoomratana Tuchinda

Role: Thesis Advisors

Created: 1991

Modified: 2561-02-19

Issued: 2018-02-17

วิทยานิพนธ์/Thesis

application/pdf

eng

DegreeName: Master of Science

Level: Master's Degree

Descipline: Organic Chemistry

Grantor: Mahidol University

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