Divergent Behavior of β-Carbonyl-Substituted 1H-Benzo[f]chromenes Under Henry Reaction Conditions
A series of β-carbonyl-substituted 1H-benzo[f]chromenes has been introduced into the reaction with nitromethane in the presence of ammonium acetate. It has been shown that in the case of 1H-benzo[f]chromene-2-carbaldehydes, the reaction does not stop at the formation of the classical Henry reaction...
সংরক্ষণ করুন:
| প্রধান লেখক: | , |
|---|---|
| বিন্যাস: | Статья |
| ভাষা: | English |
| প্রকাশিত: |
John Wiley and Sons Inc
2025
|
| বিষয়গুলি: | |
| অনলাইন ব্যবহার করুন: | https://dspace.ncfu.ru/handle/123456789/30510 |
| ট্যাগগুলো: |
ট্যাগ যুক্ত করুন
কোনো ট্যাগ নেই, প্রথমজন হিসাবে ট্যাগ করুন!
|
| সংক্ষিপ্ত: | A series of β-carbonyl-substituted 1H-benzo[f]chromenes has been introduced into the reaction with nitromethane in the presence of ammonium acetate. It has been shown that in the case of 1H-benzo[f]chromene-2-carbaldehydes, the reaction does not stop at the formation of the classical Henry reaction products − β-nitroalcohols, but their dehydration to nitrovinylchromenes takes place. In the case of alkyl(benzochromen-2-yl)ketones, 3-alkyl-2-(2-nitrovinyl)-1H-benzo[f]chromenes are formed, and methoxalyl-substituted benzochromenes give 10-amino-7a,8-dihydrobenzo[5,6]chromeno[2,3-b]pyrrol-9(11H)-ones under the Henry reaction conditions. © 2025 Wiley-VCH GmbH. |
|---|