1H-imidazole-2-carbaldehyde → HCID 23346561、化合物
反応式
[CH3:1][CH:2]1[CH2:6][CH2:5][C:4]2([C:11]([CH3:13])([CH3:12])[CH2:10][CH2:9][CH2:8][C:7]2([CH3:15])[OH:14])[O:3]1.[CH:16](C1NC=CN=1)=[O:17]>>[CH:16]([O:14][C:7]1([CH3:15])[CH2:8][CH2:9][CH2:10][C:11]([CH3:13])([CH3:12])[C:4]21[O:3][CH:2]([CH3:1])[CH2:6][CH2:5]2)=[O:17]参加物
3
実験手順
0.4 g (0.002 M) of 2,6,10,10-tetramethyl-1-oxa-spiro[4.5]decan-6-ol -- isomer A; see Example 1 -- were intimately mixed with 0.5 g (0.005 M) of freshly sublimated formylimidazole and then kept for 2 days at room temperature. The reaction mixture was then extracted with ether and the organic layer washed, dried, evaporated and finally subjected to a fractional distillation to give 0.3 g of a product having b.p. 70°-80°/0.5 Torr and containing 60% of the desired ester. An analytical sample was purified by vapour phase chromatography.
後処理
- extractionThe reaction mixture was then extracted with ether
- washthe organic layer washed
- customdried
- customevaporated
- distillationfinally subjected to a fractional distillation
出典と根拠
- ORDレコード
- ord-aac398c990874d629dd797e75c4f54eb
- 出典データセット
- uspto-grants-1978_09
- 特許番号
- US04114630
反応ノート
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