合成新的1,2,3-三唑并[1,2- a ]苯并三唑衍生物或取代的2,3-苯并-1,3a,6,6a-四氮杂戊烯。II
摘要:
本文继续合成新的1,2,3-三唑并[1,2- a ]苯并三唑或2,3-苯并-1,3a,6,6a-四氮杂戊烯,以进行生物学检测。通过适当的硝基苯基-1,2,3-三唑衍生物的脱氧环化反应和适当的叠氮苯基-1,2,3-三唑的热分解获得衍生物(方案1和2)。一些尝试将这些合成途径扩展到制备1,2,4-三唑并[1,2- a ]苯并三唑(方案3)和1,2,3-三唑并[1,2- b ] -4 H -1 ,2,3-苯并三嗪(方案4)完全失败。
合成新的1,2,3-三唑并[1,2- a ]苯并三唑衍生物或取代的2,3-苯并-1,3a,6,6a-四氮杂戊烯。II
摘要:
本文继续合成新的1,2,3-三唑并[1,2- a ]苯并三唑或2,3-苯并-1,3a,6,6a-四氮杂戊烯,以进行生物学检测。通过适当的硝基苯基-1,2,3-三唑衍生物的脱氧环化反应和适当的叠氮苯基-1,2,3-三唑的热分解获得衍生物(方案1和2)。一些尝试将这些合成途径扩展到制备1,2,4-三唑并[1,2- a ]苯并三唑(方案3)和1,2,3-三唑并[1,2- b ] -4 H -1 ,2,3-苯并三嗪(方案4)完全失败。
An Enolate-Mediated Organocatalytic Azide-Ketone [3+2]-Cycloaddition Reaction: Regioselective High-Yielding Synthesis of Fully Decorated 1,2,3-Triazoles
作者:Adluri B. Shashank、S. Karthik、R. Madhavachary、Dhevalapally B. Ramachary
DOI:10.1002/chem.201405501
日期:2014.12.15
An enolate‐mediated organocatalytic azide–ketone [3+2]‐cycloaddition (OrgAKC) reaction of a variety of enolizable arylacetones and deoxybenzoins with aryl azides was developed for the synthesis of fully decorated 1,4‐diaryl‐5‐methyl(alkyl)‐1,2,3‐triazoles in excellent yields with high regioselectivity at 25 °C for 0.5–6 h. This reaction has an excellent outcome with reference to reaction rate, yield