Water → tert-butyl 7-chloro-9-(1-chloroethyl)-6-cyano-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate

HRID 626841Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 626841
[Cl:1][C:2]1[CH:3]=[C:4]([CH:22](O)[CH3:23])[C:5]2[O:11][CH2:10][CH2:9][N:8]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[CH2:7][C:6]=2[C:19]=1[C:20]#[N:21].CN(C)C=O.S(Cl)([Cl:32])=O.O>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[C:4]([CH:22]([Cl:32])[CH3:23])[C:5]2[O:11][CH2:10][CH2:9][N:8]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[CH2:7][C:6]=2[C:19]=1[C:20]#[N:21]

Komponenten

6

Edukt 4

HCID 962WaterHCID 6228DimethylformamideHCID 24386Thionyl ChlorideHCID 86697533tert-butyl 7-chloro-6-cyano-9-(1-hydroxyethyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate

Produkt 1

HCID 86697534tert-butyl 7-chloro-9-(1-chloroethyl)-6-cyano-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

The tert-butyl 7-chloro-6-cyano-9-(1-hydroxyethyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (0.090 g, 0.26 mmol) was dissolved in methylene chloride (3 mL) and N,N-dimethylformamide (0.020 mL) and cooled in an ice bath. The thionyl chloride (0.037 mL, 0.51 mmol) was added slowly, and the reaction was stirred for 1 h and then diluted with methylene chloride (30 mL). The reaction mixture was cooled in an ice bath, and water saturated sodium bicarbonate was added. The organic layer was washed with water, brine, dried over magnesium sulfate, and concentrated to give tert-butyl 7-chloro-9-(1-chloroethyl)-6-cyano-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate as an oil. LCMS calculated for C17H20Cl2N2O3Na (M+Na)+: m/z=393.1; found: 393.0.

Aufarbeitung

  1. temperatureThe reaction mixture was cooled in an ice bath
  2. washThe organic layer was washed with water, brine
  3. dry with materialdried over magnesium sulfate
  4. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-16fdfb488d4544858f238e4c9e734c23
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09309251B2

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