Efficient synthesis of tetrahydrofurans with chiral tertiary allylic alcohols catalyzed by Ni/P-chiral ligand DI-BIDIME

2021 ◽  
Author(s):  
Yu Mu ◽  
Tao Zhang ◽  
Yaping Cheng ◽  
Wenzhen Fu ◽  
Zuting Wei ◽  
...  
Keyword(s):  
Reductive Cyclization ◽  
Allylic Alcohols ◽  
Chiral Ligand ◽  
Efficient Synthesis

Efficient nickel-catalyzed stereoselective asymmetric intramolecular reductive cyclization of O-alkynones with P-chiral bisphosphorus ligand DI-BIDIME is reported.

Organoselenium-Catalyzed, Hydroxy-Controlled Regio- and Stereoselective Amination of Terminal Alkenes: Efficient Synthesis of 3-Amino Allylic Alcohols

2015 ◽  
Vol 17 (8) ◽  
pp. 1834-1837 ◽  
Author(s):  
Zhimin Deng ◽  
Jialiang Wei ◽  
Lihao Liao ◽  
Haiyan Huang ◽  
Xiaodan Zhao
Keyword(s):  
Allylic Alcohols ◽  
Efficient Synthesis ◽  
Terminal Alkenes

Oxidation of 2-methylpyrroles with perchlorinated iron(III) metalloporphyrin catalysts: a versatile synthesis of symmetric and asymmetric dipyrromethanes

1998 ◽  
Vol 76 (10) ◽  
pp. 1467-1473 ◽  
Author(s):  
Veranja Karunaratne ◽  
David Dolphin
Keyword(s):  
Catalytic Oxidation ◽  
Allylic Alcohols ◽  
The Novel ◽  
Efficient Synthesis ◽  
Mild Conditions ◽  
Metalloporphyrin Catalysts

A variety of substituted 2-methylpyrroles (3-8) were oxidized using the metalloporphyrin catalysts iron(III) meso-tetra(2,6-dichloro-3-sulphonatophenyl)-β-octachloroporphyrin chloride 1 and iron(III) meso-tetra(2,6-dichlorophenyl)-β-octachloroporphyrin chloride 2 under very mild conditions. Treatment of the resulting allylic alcohols 3a-8a with α-free pyrroles 9 and 10 resulted in a very efficient synthesis of the corresponding dipyrromethanes 3b-8b and 3c-8c. Furthermore, the above allylic alcohols when treated with furfurylamine produced the novel (2-furylmethyl)-2-pyrrolylmethylamines 3d-8d.Key words: catalytic oxidation, metalloporphyrins, pyrroles, dipyrromethanes, polyhalogenated porphyrins.

A Facile and Efficient Synthesis of Functionalized γ-Butyrolactones from Baylis - Hillman Adducts of Isatin

2007 ◽  
Vol 60 (4) ◽  
pp. 296 ◽  
Author(s):  
Ponnusamy Shanmugam ◽  
Vadivel Vaithiyanathan ◽  
Baby Viswambharan
Keyword(s):  
Stereoselective Synthesis ◽  
Reductive Cyclization ◽  
Efficient Synthesis ◽  
Excellent Yield ◽  
Isatin Derivatives

A facile and efficient stereoselective synthesis of functionalized substituted γ-butyrolactones in excellent yield from the Baylis–Hillman adducts of isatin derivatives by a reductive cyclization methodology is reported.

ChemInform Abstract: An Efficient Synthesis of 2H-Indazoles via Reductive Cyclization of 2-Nitrobenzylamines Induced by Low-Valent Titanium Reagent.

ChemInform ◽  
2012 ◽  
Vol 43 (41) ◽  
pp. no-no
Author(s):  
Fang Sun ◽  
Xian Feng ◽  
Xuan Zhao ◽  
Zhi-Bin Huang ◽  
Da-Qing Shi
Keyword(s):  
Reductive Cyclization ◽  
Efficient Synthesis ◽  
Low Valent

Access to Macrocyclic Endocyclic and Exocyclic Allylic Alcohols by Nickel-Catalyzed Reductive Cyclization of Ynals

2005 ◽  
Vol 127 (38) ◽  
pp. 13156-13157 ◽  
Author(s):  
Beth Knapp-Reed ◽  
Gireesh M. Mahandru ◽  
John Montgomery
Keyword(s):  
Reductive Cyclization ◽  
Allylic Alcohols
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