中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1-苯基-4-三甲基锡-3-丁炔-2-酮 | 1-phenyl-4-(trimethylsilyl)but-3-yn-2-one | 88768-84-7 | C13H16OSi | 216.355 |
苯乙醛 | phenylacetaldehyde | 122-78-1 | C8H8O | 120.151 |
1-苯基-3-丁炔-2-醇 | 1-phenylbut-3-yn-2-ol | 4378-23-8 | C10H10O | 146.189 |
—— | 1-phenyl-4-(triisopropylsilyl)but-3-yn-2-one | —— | C19H28OSi | 300.516 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (S)-4-phenyl-1-butyn-3-ol | 4378-23-8 | C10H10O | 146.189 |
A one-pot reaction between C2F5CH2NH2·HCl, NaNO2 and electron-deficient alkynes gives C2F5-substituted pyrazoles in excellent yields. The transformation smoothly proceeds in dichloromethane/water, tolerates the presence of air, and requires no purification of products by column chromatography. Mechanistically, C2F5CH2NH2·HCl and NaNO2 react first in water to generate C2F5CHN2, that participates in a [3 + 2] cycloaddition with electron-deficient alkynes in dichloromethane.