| abstract |
PROCEDURE FOR THE TRIMETHYLSILILATION OF ORGANIC COMPOUNDS THAT HAVE ONE OR MORE ACTIVE HYDROGEN ATOMS. IT CONSISTS OF REACTING ORGANIC COMPOUNDS THAT HAVE ONE OR MORE ACTIVE HYDROGEN ATOMS, WITH HEXAMETHYL DISILAZANE TO REPLACE THE ACTIVE HYDROGEN ATOMS BY TRIMETHYLSILYL GROUPS, IN THE PRESENCE OF 0.001 TO 10 MOLLS OF FORMULA X NH024: NH024 FORMULA X <ONE> NH024 FORMULES OF FORMULES PER <ONE> NH024 FORMULA CATALYSTS 024> AND, WHERE X AND E ARE THE SAME OR DIFFERENT, EACH OF THEM REPRESENTING AN ELECTRON SUSTAINER GROUP, OR X REPRESENTS AN ELECTRON SUPPLIER GROUP AND Y REPRESENTS A HYDROGEN ATOM OR A TRIALKYLSILSILS GROUP. FOR APPLICATION IN THE PREPARATION OF THERAPEUTICALLY ACTIVE CEPHALOSPORINS. |