Nitrogen → Methyl 4-(bromomethyl)benzoate

HRID 5923

反応式

HRID 5923 の反応式
[Br:1][CH2:2][C:3]1[CH:11]=[CH:10][C:6]([C:7]([OH:9])=[O:8])=[CH:5][CH:4]=1.[CH3:12][Si](C=[N+]=[N-])(C)C.N#N.CCCCCC>CO.C1(C)C=CC=CC=1.C(OCC)(=O)C>[Br:1][CH2:2][C:3]1[CH:11]=[CH:10][C:6]([C:7]([O:9][CH3:12])=[O:8])=[CH:5][CH:4]=1

参加物

8

反応物 4

HCID 947NitrogenHCID 8058HexaneHCID 225994-(Bromomethyl)benzoic acidHCID 167693Trimethylsilyldiazomethane2 回

生成物 1

HCID 256687Methyl 4-(bromomethyl)benzoate

試薬・触媒・溶媒 3

HCID 887Methanol溶媒HCID 1140Toluene溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of 1.0 eq of 4-(bromomethyl)benzoic acid in 20 ml of methanol and 50 ml of toluene; was added dropwise 2.05 eq of trimethylsilyldiazomethane while stirring at room temperature. The reaction was titrated until a persistant pale yellow color existed from the addition of excess trimethylsilyldiazo- methane. Let stir at room temperature for 1 hr to insure the complete evolution of N2. Thin layer chromatography in 1:1 hexane:ethyl acetate indicated the disappearance of starting material and the appearance of desired ester with an Rf of 0.7.

後処理

  1. stirringLet stir at room temperature for 1 hr

出典と根拠

ORDレコード
ord-91ea50635080455580c7511d82a79a21
出典データセット
uspto-grants-1993_09
特許番号
US05246944

関連ノート

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