Trimethylsilyl cyanide → Diethyl 5-(cyanomethyl)benzene-1,3-dioate

HRID 2243809ノート

反応式

HRID 2243809 の反応式
[CH2:1]([O:3][C:4]([C:6]1[CH:11]=[C:10]([CH2:12]Br)[CH:9]=[C:8]([C:14]([O:16][CH2:17][CH3:18])=[O:15])[CH:7]=1)=[O:5])[CH3:2].C[Si]([C:23]#[N:24])(C)C.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>CC#N>[C:23]([CH2:12][C:10]1[CH:9]=[C:8]([C:14]([O:16][CH2:17][CH3:18])=[O:15])[CH:7]=[C:6]([C:4]([O:3][CH2:1][CH3:2])=[O:5])[CH:11]=1)#[N:24]

参加物

5

反応物 3

HCID 82115Trimethylsilyl cyanideHCID 2724141Tetrabutylammonium FluorideHCID 10935954Diethyl 5-(Bromomethyl)isophthalate

生成物 1

HCID 59709094Diethyl 5-(cyanomethyl)benzene-1,3-dioate

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

実験手順

To a solution of diethyl-5-(bromomethyl)benzene-1,3-dioate (1.9 g, 6.0 mmol) in 69 mL MeCN was added trimethylsilyl cyanide (1.2 mL, 9.0 mmol) and tetrabutylammonium fluoride (1M in THF, 9.0 mL, 9.0 mmol). The reaction was stirred for 0.5 h and concentrated. Flash chromatography (silica gel, 0-30% EtOAc/hexanes) gave diethyl 5-(cyanomethyl)benzene-1,3-dioate. 1H NMR (400 MHz, CDCl3) δ 8.65 (s, 1H), 8.20 (app t, J=0.7 Hz, 2H), 4.43 (q, J=7.1 Hz, 4H), 3.86 (s, 2H), 1.43 (t, J=7.1 Hz, 6H).

後処理

  1. concentrationconcentrated

出典と根拠

ORDレコード
ord-cb6a261d7df54f2fa7935d953dd14bd1
出典データセット
uspto-grants-2010_03
特許番号
US07678783B2

反応ノート

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