hi experts,
in Nihon Kayaku Kaishu,12,2331-4(1985) they dimethylate hydroquinone with
MeOH and a "kaolin catalyst" (this ref is unfortunately in japanese and i
can't get it). is that possible at all? does anybody know what kind of catalyst
this could be? searching for kaolin catalyst, i found different preparations
and all of them sounded rather tedious (like cooking AlCl3 for 48h in alk. solution,
adding kaolin, cooking more, baking some hours at 700°C). kaolin is a widely
available clay (Al-silicate).
is this worth pursuing (i'm thinking different substrates) or bunk??
thanks!