反应详情

Into a 1000 mL round bottom flask, equipped with a Teflon-coated stir bar and located in a water bath at room temperature, is added tetramethyldisiloxane (134 grams, 1 mole) and allyl methacrylate (126 grams, 1 mole). A reaction is initiated by the addition of Karstedt's catalyst (0.5 mL) and the charge is stirred for 3 hours. At this point PPh3 (10 mL) is added and the charge is vacuum distilled (0.1 millibar) at 50° C. The product, 112 grams of colorless liquid, is rectified on a spinning band column (75 plates, 0.3 mbar) to yield 41 grams (16%) of SiH-MA. The boiling point is determined to be 62° C.

1. customInto a 1000 mL round bottom flask, equipped with a Teflon-coated stir bar
2. customlocated in a water bath at room temperature
3. distillationdistilled (0.1 millibar) at 50° C
4. customto yield 41 grams (16%) of SiH-MA
5. customto be 62° C.