A simple route to chroman-4-ones from γ-bromopropynyl aryl ethers (1) using mercury(II) trifluoroacetate as a catalyst is described.

Kalapattukuppuswamy Kuppuswamy B. Balasubramanian

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

A novel and convenient mercury(II) mediated synthesis of chroman-4-ones

Journal of the Chemical Society, Chemical Communications

The synthesis and mercury(II) trifluoroacetate mediated transformation of 3-bromo-1-phenylprop-2-ynyl aryl ethers to flavanones is reported.

Fulltext

Mercury(II) trifluoroacetate-mediated transformation of 3-bromo-1-phenylprop-2-ynyl aryl ethers; a novel synthesis of flavanones

A one pot synthesis of a number of 4-chlorochromenes and chroman-4-ones was achieved from γ-chloropropargyl aryl ethers proceeding through Claisen rearrangement, depending upon the solvent of choice. © 1988.

Journal	Journal of the Chemical Society, Chemical Communications
ISSN	00224936
Open Access	No