中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3,4-二甲氧基苯甲醛 | 3,4-dimethoxy-benzaldehyde | 120-14-9 | C9H10O3 | 166.177 |
3,4-二甲氧基苯甲酰氯 | 3,4-dimethoxybenzoic acid chloride | 3535-37-3 | C9H9ClO3 | 200.622 |
3,4-二甲氧基苯甲酸甲酯 | methyl 3,4-dimethoxybenzoate | 2150-38-1 | C10H12O4 | 196.203 |
3,4-二甲氧基苯甲酸乙酯 | ethyl veratrate | 3943-77-9 | C11H14O4 | 210.23 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ω-cyano-4-isopropoxy-3-methoxyacetophenone | 199102-71-1 | C13H15NO3 | 233.267 |
An efficient transformation towards propynoates and propynenitriles is herein described. The practical methodology was conducted at low temperature (–78 or –60 °C) in a one-pot manner with the assistance of base rather than any transition metal catalysts. The base-induced protocol exhibits good functional group tolerance (up to 28 examples) and high efficiency (up to 92% yields) towards substituted acetylenes of great synthetic significance, which was also well demonstrated by the gram-scale reactions.