ホームMCPワークベンチSkills
ホームワークベンチ通知マイページ
llms.txt · MCPガイドプライバシーポリシー · 利用規約 · サポートv1.8.0
  1. ホーム
  2. /反応

Diethyl (cyanomethyl)phosphonate → 3-(3-Benzyloxyphenyl)-3-(3,5-dimethoxyphenyl)acrylonitrile

HRID 970989
ノート
印刷プレビュー

反応式

HRID 970989 の反応式
[CH2:1]([O:8][C:9]1[CH:10]=[C:11]([C:15]([C:17]2[CH:22]=[C:21]([O:23][CH3:24])[CH:20]=[C:19]([O:25][CH3:26])[CH:18]=2)=O)[CH:12]=[CH:13][CH:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(OP([CH2:35][C:36]#[N:37])(=O)OCC)C.C[Si]([N-][Si](C)(C)C)(C)C.[Li+].O1C2C=CC(C(C3C=C(OC)C=C(OC)C=3)=CC#N)=CC=2OCC1>C1COCC1>[CH2:1]([O:8][C:9]1[CH:10]=[C:11]([C:15]([C:17]2[CH:22]=[C:21]([O:23][CH3:24])[CH:20]=[C:19]([O:25][CH3:26])[CH:18]=2)=[CH:35][C:36]#[N:37])[CH:12]=[CH:13][CH:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 75676Diethyl (cyanomethyl)phosphonateHCID 2733832Lithium HexamethyldisilazideHCID 69203059(3-Benzyloxyphenyl)-(3,5-dimethoxyphenyl)methanoneHCID 692032153-(2,3-Dihydrobenzo[1,4]dioxin-6-yl)-3-(3,5-dimethoxyphenyl)acrylonitrile

生成物 1

HCID 692025963-(3-Benzyloxyphenyl)-3-(3,5-dimethoxyphenyl)acrylonitrile収率 86.4%

試薬・触媒・溶媒

1
HCID 8028Tetrahydrofuran溶媒

実験手順

(3-Benzyloxyphenyl)-(3,5-dimethoxyphenyl)methanone (10.66 g, 30.60 mmol), cyanomethylphosphonic acid diethyl ester (9.63 ml, 61.19 mmol) in anhydrous THF (10 ml), and lithium bis (trimethylsilyl)amide (1.0 M solution in THF, 61.20 ml, 61.19 mmol) were treated in the same manner as described above for the synthesis of 3-(2,3-dihydrobenzo[1,4]dioxin-6-yl)-3-(3,5-dimethoxyphenyl)acrylonitrile. The crude material was purified via flash column chromatography (5% EtOAc in hexane gradient to 30% EtOAc in hexane in about 40 min.) to give 3-(3-benzyloxy-phenyl)-3-(3,5-dimethoxy-phenyl)-acrylonitrile as a white solid (9.82 g, 86%): 1HNMR (DMSO-d6) 7.47-7.31 (m, 6H, Ar), 7.20-6.88 (m, 3H, Ar), 6.66-6.62 (2ts, 1H, Ar), 6.46 (d, J=2 Hz, 2H, Ar), 6.40 (s, 0.5H, double bond proton of one isomer), 6.38 (s, 0.5H, double bond proton of the other isomer), 5.12 (s, 1H, half CH2), 5.11 (s, 1H, half CH2), 3.76 (s, 3H, OCH3), 3.73 (s, 3H, OCH3); 13C NMR(DMSO-d6) δ 161.2, 160.4, 158.4, 158.2, 139.6, 138.9, 138.8, 138.3, 136.7, 129.8, 128.4, 127.9, 127.8, 121.5, 120.8, 117.9, 117.9, 116.8, 116.0, 115.5, 114.4, 107.1, 106.5, 101.9, 101.1, 96.8, 96.5, 69.4, 55.4,53.6; Anal. Calcd. For C24H21NO3: C, 77.61; H, 5.70; N, 3.77. Found: C, 77.39; H, 5.70; N, 3.69.

後処理

  1. customThe crude material was purified via flash column chromatography (5% EtOAc in hexane gradient to 30% EtOAc in hexane in about 40 min.)

出典と根拠

ORDレコード
ord-e908fdf4f72641caa2877c41082c9f3c
出典データセット
uspto-grants-2007_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07312241B2

反応ノート

読み込み中…

このページの内容参加物実験手順後処理出典と根拠反応ノート