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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1592517Generated: November 1, 2026

Acetonitrile → Diisopropylethylamine

https://huagongshe.com/reaction/1592517

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetonitrileHCID 6342—
Reactantt-butyl [(2Z)-4-chloro-2-buten-1-yl]carbamateHCID 14395669—
ReactantBis-(3-methyl-pyridin-2-ylmethyl)-amineHCID 45098010—
ProductDiisopropylethylamineHCID 81531—
Product{4-[Bis-(3-methyl-pyridin-2-ylmethyl)-amino]-cis-but-2-enyl}-carbamic acid tert-butyl esterHCID 67272352—

Reaction Steps

Using General Procedure A: Reaction of bis-(3-methyl-pyridin-2-ylmethyl)-amine, (4-chloro-cis-but-2-enyl)-carbamic acid tert-butyl ester (Casara, P et al, J. Am. Chem. Soc. 1989, 111, 9111-9113), KI in anhydrous CH3CN and DIPEA gave {4-[Bis-(3-methyl-pyridin-2-ylmethyl)-amino]-cis-but-2-enyl}-carbamic acid tert-butyl ester. 1H NMR (CDCl3) δ 1.46 (s, 9H), 2.13 (s, 6H), 3.18 (d, 2H, J=6.0 Hz), 3.63 (t, 2H, J=6.0 Hz), 3.74 (s, 4H), 5.69 (br, 2H), 5.80 (br, 1H, (NH)), 7.08 (m, 2H), 7.39 (d, 2H, J=6.0 Hz), 8.38 (d, 2H, J=3.6 Hz). Conversion to the HBr salt using General Procedure D gave COMPOUND 234 (56 mg) as a light beige solid. 1H NMR (D2O) δ 2.49 (s, 6H), 3.45 (d, 2H, J=6.9 Hz), 3.59 (d, 2H, J=6.9 Hz), 4.31 (s, 4H), 5.69 (m, 1H), 5.94 (m, 1H), 7.85 (t, 2H, J=6.9 Hz), 8.36 (d, 2H, J=7.8 Hz), 8.59 (d, 2H, J=5.4 Hz). 13C NMR (D2O) δ 17.37 (2C), 36.60, 51.89, 54.10 (2C), 125.93, 126.18 (2C), 130.97, 137.94 (2C), 138.86 (2C), 148.65 (2C), 150.66 (2C). ES-MS m/z 297 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07291631B2
Source datasetuspto-grants-2007_11
ORD IDord-e00e0483f5f4441f96f1b892b528401c
Source noteuspto-grants-2007_11