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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1947841Generated: October 31, 2026

Trimethylsilyl isocyanate → 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxamide

https://huagongshe.com/reaction/1947841

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrimethylsilyl isocyanateHCID 70696—
ReactantDiisopropylethylamineHCID 81531—
ReactantSodium BicarbonateHCID 516892—
Reactant1,2,3,6-Tetrahydro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridineHCID 21105461—
SolventDichloromethaneHCID 6344—
Product4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxamideHCID 67256930—

Reaction Steps

Trimethylsilyl isocyanate (0.2205 mL, 1.629 mmol) was added to a room temperature solution of 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine (200.0 mg, 0.8145 mmol) and DIPEA (0.5675 mL, 3.258 mmol) in DCM (10 mL). The mixture was stirred for 3 hours, after which, it was partioned between DCM and sat. NaHCO3. The organic layer was concentrated in vacuo to afford the title compound as a tan solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08399433B2
Source datasetuspto-grants-2013_03
ORD IDord-0a45d0858f62462fa8604be583709aa7
Source noteuspto-grants-2013_03