Trichloro-2-propen-1-ylsilane → HCID 57681726, Verbindung

Preparation of (4R,5R)-2-allyl-2-chloro-4,5-bis-(1-methoxy-1-methyl-[1,3,2]dioxasilolane: To a cooled (0° C.) solution of allyltrichlorosilane (7.0 mL; 48 mmol) in CH2Cl2 (80 mL) was added 1,8-diazabicyclo[5.4.0]undec-7-ene (15 mL; 102 mmol). A solution of (3R,4R)-2,5-dimethoxy-2,5-dimethyl-hexane-3,4-diol (10.0 g; 48 mmol) in CH2Cl2 (80 mL) was then added and the mixture was allowed to warm to ambient temperature and stirred for 12 hours. The solution was concentrated and the residue was treated with diethylether (100 mL). The mixture was stirred for 1 hour. The mixture was then filtered and the filtrate was concentrated. The residue was distilled under reduced pressure to give 6.6 g (44%) of (4R,5R)-2-allyl-2-chloro-4,5-bis-(1-methoxy-1-methyl-ethyl)-[1,3,2]dioxasilolane as a clear, colorless liquid.

1. concentrationThe solution was concentrated
2. additionthe residue was treated with diethylether (100 mL)
3. stirringThe mixture was stirred for 1 hour
4. filtrationThe mixture was then filtered
5. concentrationthe filtrate was concentrated
6. distillationThe residue was distilled under reduced pressure

ORD-Eintrag

ord-75b0dd9355294c39a606712ebada1dd7

Quelldatensatz

uspto-grants-2009_05

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US07534905B2