Water → HCID 59749808, compound

Temperature

32.5 °C

A 1 L round bottom flask was charged with water (95 g) and diisopropyl ether (50 g) and stirred. A solution of tert-butyldimethylsilyl chloride (39.5 g) in isopropyl ether (50 g) was charged to an addition funnel, and added dropwise to the water/IPE mixture at a rate to maintain the reaction temperature between 30-35° C. After complete addition, the reaction temperature was brought to 40° C. and maintained for 1 h. A solution of dimethylchlorosilane (24.8 g) in isopropyl ether (50 g) was then charged to the addition funnel, and this solution was added dropwise at 40-45° C. After complete addition, the reaction mixture was heated to reflux for 1 h and allowed to cool. After aqueous workup (washing with water and aqueous NaHCO3, and drying organic fractions over MgSO4), the product was isolated by fractional distillation under vacuum to yield 39.2 g M(R)M′ product/isopropyl ether solution (70%/20% by GC analysis). This product was found to have an Si—H content of 79 cc H2/g by gasiometric titration.

1. additionAfter complete addition
2. customwas brought to 40° C.
3. temperaturemaintained for 1 h
4. additionthis solution was added dropwise at 40-45° C
5. additionAfter complete addition
6. temperaturethe reaction mixture was heated
7. temperatureto reflux for 1 h
8. temperatureto cool
9. washAfter aqueous workup (washing with water and aqueous NaHCO3, and drying organic fractions over MgSO4)
10. customthe product was isolated by fractional distillation under vacuum
11. customto yield 39.2 g

ORD record

ord-c5c287dd7b134f45bb78154a1dee8a69

Source dataset

uspto-grants-2009_03

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07507775B2