Introduction of N,N'-disulfonylhydrazines as new sulfonylating reagents for highly efficient synthesis of (E)-β-iodovinyl arenesulfones under mild conditions

2020 ◽  
Vol 31 (7) ◽  
pp. 1877-1880
Author(s):  
Dongping Luo ◽  
Lin Min ◽  
Weiping Zheng ◽  
Lidong Shan ◽  
Xinyan Wang ◽  
...  
Keyword(s):  
Efficient Synthesis ◽  
Mild Conditions ◽  
Highly Efficient

ChemInform Abstract: Highly Efficient Synthesis of Aldenamines from Carboxamides by Iridium-Catalyzed Silane-Reduction/Dehydration under Mild Conditions.

ChemInform ◽  
2009 ◽  
Vol 40 (30) ◽  
Author(s):  
Yukihiro Motoyama ◽  
Masaharu Aoki ◽  
Naoki Takaoka ◽  
Ryuta Aoto ◽  
Hideo Nagashima
Keyword(s):  
Efficient Synthesis ◽  
Mild Conditions ◽  
Highly Efficient

An efficient synthesis of oxazolines via a cascade reaction between azaoxyallyl cations and 1,2-benzisoxazoles

2019 ◽  
Vol 17 (32) ◽  
pp. 7526-7530 ◽  
Author(s):  
Li Sun ◽  
Yi Liu ◽  
Yankai Wang ◽  
Yuanyuan Li ◽  
Zhiwen Liu ◽  
...  
Keyword(s):  
Cycloaddition Reaction ◽  
Cascade Reaction ◽  
Efficient Synthesis ◽  
Mild Conditions ◽  
Highly Efficient

A highly efficient 3 + 2 cycloaddition reaction with azaoxyallyl cation C–O terminals under mild conditions has been developed.

Synthesis of Bisflavanol-Type Natural Products and Their Analogues­ via Self-Coupling of C8-Methylol Catechin Derivatives

Synthesis ◽  
2019 ◽  
Vol 51 (16) ◽  
pp. 3127-3141
Author(s):  
Deng-Ming Huang ◽  
Hui-Jing Li ◽  
Yan Zhao ◽  
Yan-Chao Wu
Keyword(s):  
Natural Products ◽  
Coupling Mechanism ◽  
The Novel ◽  
Efficient Synthesis ◽  
Metal Free ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Acid Catalyzed

A highly efficient and regioselective self-coupling of C8-methylol catechin derivatives is developed for the synthesis of dimeric flavanol analogues under metal-free and mild conditions. Its applicability is showcased by the efficient synthesis of bisflavanol-type natural products bis-8,8′-catechinylmethane, bis-8,8′-epicatechinylmethane, talienbisflavan A, and oolonghomobisflavan A. The novel self-coupling mechanism sheds new light on the classical Friedel–Crafts alkylation mechanism in acid-catalyzed catechin–formaldehyde condensation.

A reusable zirconium(IV) Schiff base complex catalyzes highly efficient synthesis of quinoxalines under mild conditions

2012 ◽  
Vol 38 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Maasoumeh Jafarpour ◽  
Abdolreza Rezaeifard ◽  
Reza Haddad ◽  
Somayeh Gazkar
Keyword(s):  
Schiff Base ◽  
Schiff Base Complex ◽  
Efficient Synthesis ◽  
Base Complex ◽  
Mild Conditions ◽  
Highly Efficient

scholarly journals Simple and Efficient Synthesis of Allyl Sulfones through Cs2CO3-Mediated Radical Sulfonylation of Morita–Baylis–Hillman Adducts with Thiosulfonates

SynOpen ◽  
2021 ◽  
Vol 05 (01) ◽  
pp. 91-99
Author(s):  
Raju Jannapu Reddy ◽  
Angothu Shankar ◽  
Md. Waheed
Keyword(s):  
Efficient Synthesis ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Plausible Mechanism ◽  
High Yields

AbstractA highly efficient and eco-friendly method has been developed for the synthesis of allyl sulfones using Morita–Baylis–Hillman (MBH) adducts and thiosulfonates under mild conditions. The Cs2CO3-promoted radical sulfonylation provided a series of allyl sulfones in good to high yields with high stereoselectivities. A wide variety of MBH bromides/acetates as well as thiosulfonates were tolerated and reliable in scaled-up synthesis. A plausible mechanism is proposed to rationalize the radical sulfonylation.

Highly efficient synthesis of cyclic carbonates from epoxides catalyzed by salen aluminum complexes with built-in “CO2 capture” capability under mild conditions

2014 ◽  
Vol 16 (3) ◽  
pp. 1496-1506 ◽  
Author(s):  
Rongchang Luo ◽  
Xiantai Zhou ◽  
Shaoyun Chen ◽  
Yang Li ◽  
Lei Zhou ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Co2 Capture ◽  
High Efficiency ◽  
Single Component ◽  
Cyclic Carbonates ◽  
Efficient Synthesis ◽  
Imidazolium Ionic Liquid ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Salen Aluminum

A polyether-based imidazolium ionic liquid functionalized salen Al complex displays high efficiency and reusability as a homogeneous, single-component and multi-functional catalyst for the cycloaddition of CO2 to epoxides under mild conditions.

Highly efficient synthesis of aldenamines from carboxamides by iridium-catalyzed silane-reduction/dehydration under mild conditions

2009 ◽  
pp. 1574 ◽  
Author(s):  
Yukihiro Motoyama ◽  
Masaharu Aoki ◽  
Naoki Takaoka ◽  
Ryuta Aoto ◽  
Hideo Nagashima
Keyword(s):  
Efficient Synthesis ◽  
Mild Conditions ◽  
Highly Efficient

Bismuth(III)-catalyzed rapid and highly efficient synthesis of 2-aryl-1-arylmethyl-1H-benzimidazoles in water

2008 ◽  
Vol 86 (2) ◽  
pp. 124-128 ◽  
Author(s):  
J S Yadav ◽  
B.V. Subba Reddy ◽  
K Premalatha ◽  
K Shiva Shankar
Keyword(s):  
Aromatic Aldehydes ◽  
Efficient Synthesis ◽  
Mild Conditions ◽  
Highly Efficient ◽  
High Yields ◽  
Bismuth Triflate

2-Aryl-1-arylmethyl-1H-benzimidazoles are prepared in high yields under extremely mild conditions via the condensation of aryl-1,2-diamines with aromatic aldehydes using 10 mol% of bismuth triflate in water. The use of water and readily available bismuth triflate makes this process quite simple, more convenient, and environment-friendly.Key words: aryl-1,2-diamines, aromatic aldehydes, bismuth catalysis, benzimidazoles.

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