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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1930341Generated: October 30, 2026

Isopropenyl chloroformate → Prop-1-en-2-yl 3-(trifluoromethyl)isoxazol-5-ylcarbamate

https://huagongshe.com/reaction/1930341

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsopropenyl chloroformateHCID 93846—
ReactantLithium HexamethyldisilazideHCID 2733832—
Reactant3-(Trifluoromethyl)-1,2-oxazol-5-amineHCID 13913996—
ProductProp-1-en-2-yl 3-(trifluoromethyl)isoxazol-5-ylcarbamateHCID 6929952138.2%

Reaction Steps

Using general method G, 3-(trifluoromethyl)isoxazol-5-amine (1.38 g, 9.1 mmol) and isopropenyl chloroformate (1.1 g, 9.1 mmol) in presence of LiHMDS (1.0M, 18 mL, 18.2 mmol) were combined to afford prop-1-en-2-yl 3-(trifluoromethyl)isoxazol-5-ylcarbamate (0.82 g, 38% yield).). 1H NMR (400 MHz, DMSO-d6): δ 12.3 (s, 1H), 6.48 (s, 1H), 4.83 (m, 1H), 4.80 (m, 1H), 1.93 (s, 3H); MS (ESI) m/z: 237.0 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08188113B2
Source datasetuspto-grants-2012_05
ORD IDord-6e1fece7dd114a8c8d56403bcd7b0ee2
Source noteuspto-grants-2012_05