反応式
[CH3:1][C:2]1([CH3:21])[CH2:11][CH2:10][C:9]([CH3:13])([CH3:12])[C:8]2[CH:7]=[C:6]([C:14]#[C:15][C:16]([O:18][CH2:19][CH3:20])=[O:17])[CH:5]=[CH:4][C:3]1=2.[CH3:22]C1C(C#C)=CC2C(C)(C)CCC(C)(C)C=2C=1.COC(Cl)=O.C([Li])CCC>>[CH3:22][C:5]1[C:6]([C:14]#[C:15][C:16]([O:18][CH2:19][CH3:20])=[O:17])=[CH:7][C:8]2[C:9]([CH3:12])([CH3:13])[CH2:10][CH2:11][C:2]([CH3:21])([CH3:1])[C:3]=2[CH:4]=1参加物
5
反応物 4
生成物 1
実験手順
Employing the same general procedure as used for the preparation of ethyl 3-[5,5,8,8,-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl]propiolate (Compound A), but instead using 1.9 g of (3-methyl-5,5,8,8,-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)ethyne, 940 mgs (10 mmols) of methylchloroformate and 8.8 mmols of n-butyllithium the title compound was obtained as an oil.
出典と根拠
- ORDレコード
- ord-f5387a2864a347ddba25cdab12417829
- 出典データセット
- uspto-grants-1997_09
- 特許番号
- US05663367
関連ノート
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