| abstract |
1381443 Trihydroxyphenones L GIVAUDAN & CIE SA 19 July 1973 [20 July 1972] 34396/73 Heading C2C Compounds of Formula I (in which R is C 1-5 alkyl) are prepared by prenylating a compound of Formula II under alkaline conditions in the presence of an iodide, e.g. an alkali metal iodide, and magnesium oxide, the magnesium oxide being used in an amount of at least 0À5 mol. equivalents based on the prenylating agent used. Specified prenylating agents are prenyl chloride and prenyl. |