Ethyl Bromide → HCID 178418443, compound

Ethylmagnesium bromide was prepared in a similar manner to Example 1 from 12 g (0.5 mole) of metallic magnesium in 250 ml of tetrahydrofuran and 5.4 g (0.05 mole) of ethyl bromide instead of 54 g (0.5 mole). Then, 10 ml of a tetrahydrofuran solution containing 2 g (0.05 mole) of methylacetylene were added dropwise to the reaction mixture kept at 40° to 50° C. to form 1-propynylmagnesium bromide. Further, 57.2 g (0.4 mole) of chloromethyl dimethyl chlorosilane were added dropwise into the reaction mixture kept at 50° to 70° C. over a period of 4 hours followed by aging at 66° C. for 2 hours. The reaction mixture was subjected to hydrolysis with a saturated aqueous solution of ammonium chloride and the organic solution taken from the mixture by phase separation was distilled under reduced pressure to remove the solvent leaving 31 g of a viscous liquid residue as the reaction product.

1. additionwere added dropwise to the reaction mixture
2. customkept at 40° to 50° C.

ORD record

ord-198c357085b444928b9698118ab36a14

Source dataset

uspto-grants-1985_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US04539417