A simple and high yielding route to 3-alkylchromanones and 3-alkylchromones has been achieved from 3-alkyl-3-phenyl-sulphonyl-4-chromanones. A simple and high yielding route to 3-alkylchromanones and 3-alkylchromones has been achieved from 3-alkyl, 3-phenylsulphonyl-4-chromanones. © 1991.

Kalpathy Chidambareswaran Santhosh

Kalapattukuppuswamy Kuppuswamy B. Balasubramanian

chroman derivative

CHROMONE DERIVATIVE

article

priority journal

reaction analysis

synthesis

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 facile synthesis of 3-alkylchromanones and chromones

Tetrahedron Letters

The crystal structures of (i) CH3(C9H6O2)SO2C 6H5 and (ii) CH3(C9H8O2)SO2-C 6H5 have been determined by X-ray diffraction. (i) crystallizes in the monoclinic space group P21/c with unit cell parameters a = 8.814(1)Å, b = 10.310(1)Å, c = 15.841(4)Å, β = 98.17(1)°, and Z = 4, and (ii) crystallizes in the orthorhombic space group P212121 with unit cell parameters a = 6.206(1)Å, b = 11.752(5)Å, c = 19.865(3)Å, and Z = 4. The pyran ring in both of them is in the distorted half-chair conformation with differing degrees of distortion from the ideal.

Journal of Chemical Crystallography

Crystal structures of 6-methyl-3-phenylsulfonylchroman-4-one and trans-6-methyl-3-phenylsulfonylchroman-4-ol

Phenylation of 3-phenylsulfonlylchroman-4-ones using Ph 3BiCO3leading to the synthesis of isoflavanones and isoflavones is reported.

Journal	Tetrahedron Letters
ISSN	00404039
Open Access	No