超声辅助下腈亚胺与 3-甲酰基色酮-Meldrum's 酸加合物的[3+2]-环加成反应的反向取向。
Reverse orientation in the ultrasound-assisted [3 + 2]-cycloaddition reaction of nitrile imines with 3-formylchromone-Meldrum's acid adducts.
机构信息
Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran.
出版信息
Mol Divers. 2022 Apr;26(2):1141-1150. doi: 10.1007/s11030-021-10240-4. Epub 2021 Jun 15.
PMID:34129183
Abstract
The [3 + 2]-cycloaddition reaction of nitrile imines with 2,2-dimethyl-5-[(4-oxo-4H-chromen-3-yl)methylene]-1,3-dioxane-4,6-dione tends to form the reverse-orientation products under ultrasound irradiation in EtOH in the presence of EtN. Evidence for the structure of product 5b was obtained from single-crystal X-ray analysis.
摘要
腈亚胺与 2,2-二甲基-5-[(4-氧代-4H-色烯-3-基)亚甲基]-1,3-二氧戊环-4,6-二酮的[3+2]-环加成反应在超声辐射下，在 EtOH 中存在 EtN 时，往往会形成反向取向的产物。产物 5b 的结构证据来自单晶 X 射线分析。
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