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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2102178Generated: October 29, 2026

Lithium borohydride → HCID 67405135, compound

https://huagongshe.com/reaction/2102178

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 numberUS07572820B2
Source datasetuspto-grants-2009_08
ORD IDord-3e3b357ebb1145d7bc545a7d13b653c1
Source noteuspto-grants-2009_08