Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1969121Generated: October 31, 2026

Dichloromethane → HCID 57786662, compound

https://huagongshe.com/reaction/1969121

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantPhosgeneHCID 6371—
ReactantDiisopropylethylamineHCID 81531—
Reactant1-Dimethylamino-2-pentyneHCID 139008—
Reactant2-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)anilineHCID 46738005—
SolventTolueneHCID 1140—
ProductHCID 57786662HCID 5778666260%

Reaction Steps

To a cooled solution of 2-Methyl-3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylamine (29 mg, 0.13 mmol) in 2.4 mL of dichloromethane were added 0.11 mL (0.66 mmol) of diisopropylethylamine and 78 uL of a 20% solution of phosgene in toluene at 0 C. The reaction mixture was stirred at 0 C for 20 minutes and transferred into a flask containing 140 mg (18% pure, 0.17 mmol) of dimethyl-pent-2-ynylamine. The reaction mixture was stirred at RT for 18 hour then applied to column chromatography without workup. Chromatography (0->50% in hexanes/ethyl acetate in 30 minutes) gave 27 mg (73 umol, 60%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08426441B2
Source datasetuspto-grants-2013_04
ORD IDord-efa494dc2a7a44ef9dd4afe95c9a85aa
Source noteuspto-grants-2013_04