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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1614884Generated: November 3, 2026

Pivaloyl chloride → HCID 45270787, compound

https://huagongshe.com/reaction/1614884

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPivaloyl chlorideHCID 62493—
Reactant5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalen-2-olHCID 268786—
CatalystTitanium TetrachlorideHCID 24193—
CatalystDiamminetetrachlorotitanate(IV)HCID 160960—
SolventDichloromethaneHCID 6344—
ProductHCID 45270787HCID 45270787—

Reaction Conditions

Temperature120 °C

Reaction Steps

The synthesis process is as set forth in the chemical reaction formula below. The TiCl4 in the reaction path stands for titanium chloride. To 5,6,7,8-tetrahydro-2-hydroxy-5,5,8,8-tetramethylnaphthalene (409 mg, 2.00 mmol) were added titanium chloride (417 mg, 2.20 mmol) and pivaloyl chloride (361 mg, 2.99 mmol) followed by stirring at 120° C. for 1 hour. The reaction solution was diluted by dichloromethane, and the organic layer was washed by water, a saturated sodium hydrogen carbonate aq. solution, and a saturated saline solution, dried over magnesium sulfate, and concentrated under reduced pressure. The crude product was purified by silica gel chromatography using hexane/ethyl acetate (40/3) as an elution solvent. The yield was 53.6 mg (9.0%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08765719B2
Source datasetuspto-grants-2014_07
ORD IDord-2b8a0550c0384e25b553d30943f03be0
Source noteuspto-grants-2014_07