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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1188672Generated: November 2, 2026

Lithium borohydride → HCID 67405135, compound

https://huagongshe.com/reaction/1188672

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium borohydrideHCID 4148881—
ReactantHCID 67403795HCID 67403795—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67405135HCID 6740513547.2%

Reaction Steps

A solution of methyl 2-{[5-cyano-2-methyl-4-(trifluoromethyl)-1H-indol-1-yl]methyl}-2-propenoate (Example 350) (0.3 g, 0.93 mmol) in THF (10 mL) was cooled to 0° C. and treated with LiBH4 (0.93 mL, 2M in THF). After overnight, the reaction was quenched and partitioned between EtOAc and water. Drying (MgSO4), filtration, and concentration was followed by radial chromatography (0-90% EtOAc-hexanes gradient) to afford the title compound (0.13 g, 47% yield): 1H NMR (400 MHz, CDCl3) δ 7.55 (d, J=8.5 Hz, 1H), 7.47 (d, J=8.5 Hz, 1H), 6.56 (s, 1H), 4.33 (dd, J=14.6, 7.3 Hz, 1H), 3.92 (dd, J=14.6, 7.3 Hz, 1H), 3.52 (br, 2H), 2.50 (s, 3H), 2.19 (m, 1H), 1.56 (br, 1H), 0.97 (d, J=6.8 Hz, 3H); MS (ES) m/z 297 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08673948B2
Source datasetuspto-grants-2014_03
ORD IDord-c56f90ab01e3462e8dba88a111771db7
Source noteuspto-grants-2014_03