开发了一种通过Cu( II ) 催化氧化 1,2,3,4-四氢-β-咔啉 (THβCs)合成芳香族 β-咔啉的温和、高效和环保的方法,其中空气 (O 2 )用作清洁氧化剂。该方法具有环境友好、温和、官能团耐受性好、收率高、实验操作简单等优点。此外,该新方法成功应用于高效实用的β-咔啉生物碱perlolyrine和flalazin的全合成。
Microwave Assisted Pictet–Spengler and Bischler–Napieralski Reactions
作者:Bikash Pal、Parasuraman Jaisankar、Venkatachalam S. Giri
DOI:10.1081/scc-120021516
日期:2003.1.7
Abstract Pictet–Spengler and Bischler–Napieralskireaction products have been prepared–using microwave irradiation on silicagel support under solvent free condition. Microwave assisted reactions have resulted in better yields of the desired products than prepared under conventional conditions.
Cu-catalyzed mild and efficient oxidation of THβCs using air: application in practical total syntheses of perlolyrine and flazin
作者:Bo Zheng、Tien Ha Trieu、Tian-Zhuo Meng、Xia Lu、Jing Dong、Qiang Zhang、Xiao-Xin Shi
DOI:10.1039/c7ra13434g
日期:——
friendliness, mildness, very good tolerance of functional groups, high yielding and easy experiment operation. In addition, this new methodology was successfully applied in the efficient and practical total syntheses of β-carboline alkaloids perlolyrine and flazin.
开发了一种通过Cu( II ) 催化氧化 1,2,3,4-四氢-β-咔啉 (THβCs)合成芳香族 β-咔啉的温和、高效和环保的方法,其中空气 (O 2 )用作清洁氧化剂。该方法具有环境友好、温和、官能团耐受性好、收率高、实验操作简单等优点。此外,该新方法成功应用于高效实用的β-咔啉生物碱perlolyrine和flalazin的全合成。
A convenient synthesis of β-carbolines by iron-catalyzed aerobic decarboxylative/dehydrogenative aromatization of tetrahydro-β-carbolines under air
A convenient synthesis for the conversion of various substituted tetrahydro-β-carbolines has been developed by iron-catalyzed decarboxylative/dehydrogenative aromatization to construct aromatic β-carbolines under air atmosphere. In the presence of a FeCl3 catalyst, this reaction exhibited a good functional group tolerance to produce corresponding β-carbolines in good yields in the absence of any additive
Copper-Catalyzed Protodecarboxylation and Aromatization of Tetrahydro-β-Carboline-3-Carboxylic Acids
作者:Mohd Mordi、Ramu Meesala、Sharif Mansor
DOI:10.1055/s-0033-1340053
日期:——
An efficient synthetic methodology has been developed to construct aromatic β-carbolines from tetrahydro-β-carboline-3-carboxylic acids by copper-promoted sequential decarboxylation and oxidative aromatization.
An Alternative to Pictet-Gams Reaction Triggered by Hendrickson Reagent: Isoquinolines and β-Carbolines from Amides
作者:Shaozhong Wang、Mengde Wu
DOI:10.1055/s-0029-1217138
日期:2010.2
The Hendrickson reagent derived from triflic anhydride and triphenylphosphine oxide exhibited high oxophilicity and induced the intramolecular cyclization of β-arylethylamides perfectly. Thus, a one-pot protocol to access isoquinoline and β-carboline was developed involving cyclization followed by oxidative aromatization. Hendrickson reagent - isoquinoline - β-carboline - β-arylethylamide - manganese(IV)