Diisopropylethylamine → HCID 71494737, compound

HRID 1486995Notes

Reaction equation

[F:1][C:2]([F:24])([F:23])[C:3]1[CH:4]=[C:5]([C:13]2[N:17]=[CH:16][N:15](/[CH:18]=[CH:19]\[C:20]([OH:22])=O)[N:14]=2)[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1.Cl.[NH:26]1[CH2:29][CH:28]([C:30]#[N:31])[CH2:27]1.C(P1(=O)OP(CCC)(=O)OP(CCC)(=O)O1)CC.CCN(C(C)C)C(C)C>C(Cl)Cl>[F:12][C:9]([F:10])([F:11])[C:7]1[CH:6]=[C:5]([C:13]2[N:17]=[CH:16][N:15](/[CH:18]=[CH:19]\[C:20]([N:26]3[CH2:29][CH:28]([C:30]#[N:31])[CH2:27]3)=[O:22])[N:14]=2)[CH:4]=[C:3]([C:2]([F:24])([F:23])[F:1])[CH:8]=1

Participants

Conditions

Temperature: -60 °C

Procedure

(Z)-3-(3-(3,5-bis(trifluoromethyl)phenyl)-1H-1,2,4-triazol-1-yl)acrylic acid (0.2 g, 1.0 eq.) was dissolved in DCM (20 mL). The reaction mixture was cooled to −60° C. where azetidine-3-carbonitrile hydrochloride (0.08 g, 1.2 eq), T3P (50% in EtOAc) (0.4 mL, 1.2 eq) followed by DIPEA (0.2 mL, 2 eq) were added dropwise. The clear reaction mixture was stirred at −60° C. for 45 min. The reaction mixture was concentrated under reduced pressure (25° C., 20 mm Hg) to afford the crude product, which was purified by chromatography (3-5% Methanol in DCM). to obtain (Z)-1-(3-(3-(3,5-bis(trifluoromethyl)phenyl)-1H-1,2,4-triazol-1-yl)acryloyl)azetidine-3-carbonitrile (0.14 g, 60% yield). 1H NMR (400 MHz, DMSO) δ=9.36 (s, 1H), 8.54 (s, 2H), 8.30 (s, 1H), 7.45-7.43 (d, J=10 Hz, 1H), 5.95-5.92 (d, J=10 Hz, 1H), 4.39-4.37 (t, 1H), 4.29-4.11 (m, 3H), 3.84-3.82 (m, 1H); LCMS calcd. for C17H12F6N5O [M+H]+ 416.29. found 416.14, at 2.64 min retention time

Workup

additionwere added dropwise
concentrationThe reaction mixture was concentrated under reduced pressure (25° C., 20 mm Hg)
customto afford the crude product, which
customwas purified by chromatography (3-5% Methanol in DCM)

Sources & evidence

ORD record: ord-0cb2f2bb4d7e413d9148907e37eb6747
Source dataset: uspto-grants-2016_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09428490B2

Reaction notes

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