反応式
[N:1]([CH2:4][C:5]1[CH:10]=[CH:9][C:8]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=2[C:17]#[N:18])=[CH:7][CH:6]=1)=[N+]=[N-].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.O.CCOCC>O1CCCC1>[NH2:1][CH2:4][C:5]1[CH:6]=[CH:7][C:8]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=2[C:17]#[N:18])=[CH:9][CH:10]=1参加物
実験手順
A solution of 4-azidomethyl-2'-cyanobiphenyl (4.68 g, 20 mmole) in 40 ml of dry tetrahydrofuran (THF) was stirred under N2 at room temperature as 5.3 g (20 mmole) of triphenylphosphine was added in small portions over a period of about 10 minutes. After 2 hours, by which time gas evolution had ceased, 532 μl (532 mg, 29.6 mmole) of H2O was added. After an additional 23 hours, the solution was concentrated in vacuo to give a pale golden gum. This material was chromatographed on a column of silica gel (50×8.5 cm) packed in CH2Cl2. The column was eluted with a gradient of 0-6% methanol in CH2Cl2. Concentration of the product fractions gave a foam which solidified upon trituration with ether. This material was collected on a filter, washed further with some ether, and dried in vacuo at 50° C. to give white crystals, of satisfactory purity; mass spectrum (FAB) m/e 209 (M+1)+.
後処理
- additionwas added in small portions over a period of about 10 minutes
- waitAfter an additional 23 hours
- concentrationthe solution was concentrated in vacuo
- customto give a pale golden gum
- customThis material was chromatographed on a column of silica gel (50×8.5 cm)
- washThe column was eluted with a gradient of 0-6% methanol in CH2Cl2
- customConcentration of the product fractions gave a foam which
- customThis material was collected on a filter
- washwashed further with some ether
- customdried in vacuo at 50° C.
- customto give white crystals
出典と根拠
- ORDレコード
- ord-481edb139da147e6bc2ccf89d6aca787
- 出典データセット
- uspto-grants-1994_01
- 特許番号
- US05281614
関連ノート
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