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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 234597Generated: October 29, 2026

Benzene → HCID 86750216, compound

https://huagongshe.com/reaction/234597

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneHCID 241—
ReactantSodium hydrideHCID 24758—
ReactantPivaloyl chlorideHCID 62493—
ReactantHCID 19080720HCID 19080720—
SolventDimethylformamideHCID 6228—
ProductHCID 86750216HCID 8675021663.4%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a mixture of 0.029 g of sodium hydride in 20 ml of a 1:1 solution of benzene and dimethylformamide were added 0.25 grams of 1,1-bis-(4-trifluoromethylpyrid-3-yl)methanol. After the gas evolution had subsided, 0.14 grams of pivaloyl chloride were added. After stirring for an hour at 50° C., the reaction mixture was partitioned between 25 ml of water and 50 ml of ethyl ether. The ethyl ether layer was washed with water, washed with a saturated sodium chloride solution, dried over magnesium sulfate, filtered, and concentrated in vacuo to afford 0.24 g of the crude product as a light brown semisolid. This crude material was then purified via chromatography on a silica gel column using ethyl acetate-hexane (1:3) as the eluant to afford 0.2 g of 1,1-bis-(4-trifluoromethylpyrid-3-yl)-1-trimethylacetoxymethane as a light brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05595958
Source datasetuspto-grants-1997_01
ORD IDord-21f1f54f8df74704af1e012c1d8dc2b6
Source noteuspto-grants-1997_01