| 摘要 |
The invention relates to a method for the production of a compound of formul a (I), wherein a compound of formula (II), in which R1 represents chlorine, bromine, iodine, -O-COCH3, -tosylate or -mesylate, is reacted with a compoun d of formula (III), optionally in a suitable diluting agent and/or in the presence of a suitable additional reactant or catalyst, wherein the reaction is carried out at a temperature ranging from 20 to 80~ C.
|
