Isoamyl Nitrite → HCID 54331335、化合物

HRID 851368

反応式

HRID 851368 の反応式
N[CH:2]1[C@@H:5]([CH2:6][CH:7]=[CH2:8])[N:4]([C:9](=[C:14]([CH3:16])[CH3:15])[C:10]([O:12][CH3:13])=[O:11])[C:3]1=[O:17].[BrH:18].C(N(CC)CC)C.O.C1(C)C=CC(S(O)(=O)=O)=CC=1.N(OCCC(C)C)=O>C(Cl)Cl>[Br:18][CH:2]1[C@@H:5]([CH2:6][CH:7]=[CH2:8])[N:4]([C:9](=[C:14]([CH3:16])[CH3:15])[C:10]([O:12][CH3:13])=[O:11])[C:3]1=[O:17]

参加物

6

反応物 4

HCID 8053Isoamyl NitriteHCID 521998p-Toluenesulfonic acid monohydrateHCID 2734074Triethylammonium bromideHCID 54087051HCID 54087051、化合物

生成物 1

HCID 54331335HCID 54331335、化合物収率 81.3%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

反応条件

温度
0 °C

実験手順

A mixture of methyl 2-[(4R)-3-amino-4-allyl-2-oxoazetidin-1-yl]-3-methyl-2-butenoate (815 mg), triethylamine hydrobromide (2.50 g) and p-toluenesulfonic acid hydrate (1.17 g) in methylene chloride (30 ml) was cooled to 0° C. and isopentyl nitrite (0.54 ml) was added. After stirring for 20 minutes at the same temperature, the mixture was concentrated and the residue was dissolved in ethyl acetate (50 ml). The solution was washed successively with 10% aqueous sodium bisulfite, water and brine, dried over magnesium sulfate and evaporated to give methyl 2-[(4R)-3-bromo-4-allyl-2-oxoazetidin-1-yl]-3-methyl-2-butenoate (840 mg) as a crude oil.

後処理

  1. concentrationthe mixture was concentrated
  2. dissolutionthe residue was dissolved in ethyl acetate (50 ml)
  3. washThe solution was washed successively with 10% aqueous sodium bisulfite, water and brine
  4. dry with materialdried over magnesium sulfate
  5. customevaporated

出典と根拠

ORDレコード
ord-c105696679a9498188ae1b51bcf7cba1
出典データセット
uspto-grants-1983_05
特許番号
US04383945

関連ノート

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