The Reaction of ?, ?-dichlorodimethylsiloxanes with methylamine

Methods of Synthesis of αω-Difunctional Oligosiloxanes with Two Organic Substituents Per Unit

“…However, when the reaction is carried out at -60°C, the products are au;-di(methylamino)oligodimethylsiloxanes containing between 2 and 10 silicon atoms in yields of 51.8, 65.5, 39.8, 31.4, 21.1, 62.0, 73.3, 74.1, and 37.4% respectively 119 . Depending on the conditions, the products of the analogous reaction of methylamine may be both linear and six-and eight-membered cyclic compounds: (CH s The latter are formed when the process is carried out in a solvent with equimolar proportions of the αω-dichloro-oligosiloxane and the amine.…”