Metal-Free Mesoporous SiO2 Nanorods as a Highly Efficient Catalyst for the Baeyer–Villiger Oxidation under Mild Conditions

2018 ◽  
Vol 6 (5) ◽  
pp. 5868-5876 ◽  
Author(s):  
Xueyao Zhang ◽  
Honglei Yang ◽  
Guangxue Yang ◽  
Shuwen Li ◽  
Xiang Wang ◽  
...  
Keyword(s):  
Efficient Catalyst ◽  
Metal Free ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Mesoporous Sio2 ◽  
Villiger Oxidation

Transition-metal-free Baeyer–Villiger oxidation of benzaldehydes to phenols using Na2S2O8

2019 ◽  
Vol 43 (3-4) ◽  
pp. 115-118
Author(s):  
Wei Li ◽  
Lin-Lin Chen ◽  
Ke Han ◽  
Zhi-Bin Liu ◽  
You-Shun Luan ◽  
...  
Keyword(s):  
Transition Metal ◽  
Practical Approach ◽  
New Approach ◽  
Metal Free ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Operational Simplicity ◽  
Villiger Oxidation

A new approach for preparation of phenols from benzaldehydes using Na2S2O8 has been established. This reaction is a Na2S2O8-promoted Baeyer–Villiger oxidation. It provides a highly efficient and practical approach for the preparation of phenols. The protocol is highlighted by its operational simplicity and mild conditions.

A highly efficient catalyst for Suzuki–Miyaura coupling reaction of benzyl chloride under mild conditions

RSC Advances ◽  
2014 ◽  
Vol 4 (69) ◽  
pp. 36437-36443 ◽  
Author(s):  
Zhenhong Guan ◽  
Buyi Li ◽  
Guoliang Hai ◽  
Xinjia Yang ◽  
Tao Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Benzyl Chloride ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Efficient Catalyst ◽  
Microporous Polymers ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Cross Coupling Reactions

Microporous polymers with built-in triphenylphosphine palladium exhibit highly efficient catalytic activity for cross-coupling reactions of benzyl chloride under mild conditions.

A mild, general, and metal-free method for site-specific deuteration induced by visible light using D2O as the source of deuterium atoms

2020 ◽  
Vol 22 (3) ◽  
pp. 669-672 ◽  
Author(s):  
Shuai Shi ◽  
Ruining Li ◽  
Liangming Rao ◽  
Zhankui Sun
Keyword(s):  
Visible Light ◽  
Functional Group ◽  
Site Specific ◽  
Metal Free ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Radical Approach

Visible light induced desulfurization–deuteration method was developed using D2O as the source of deuterium atoms. This radical approach features mild conditions, broad substrate scope, highly efficient D-incorporation and excellent functional group compatibility.

Unprecedented organocatalytic reduction of lignin model compounds to phenols and primary alcohols using hydrosilanes

2014 ◽  
Vol 50 (7) ◽  
pp. 862-865 ◽  
Author(s):  
Elias Feghali ◽  
Thibault Cantat
Keyword(s):  
Primary Alcohols ◽  
Model Compounds ◽  
Efficient Catalyst ◽  
Lignin Model Compounds ◽  
Metal Free ◽  
Mild Conditions ◽  
Lignin Model

The first metal-free reduction of lignin model compounds is described. Using inexpensive PMHS and TMDS hydrosilanes as reductants, α-O-4 and β-O-4 linkages are reduced to primary alcohols and phenols under mild conditions using B(C6F5)3as an efficient catalyst.

Highly efficient and metal-free oxidation of olefins by molecular oxygen under mild conditions

Tetrahedron ◽  
2007 ◽  
Vol 63 (32) ◽  
pp. 7634-7639 ◽  
Author(s):  
Xinli Tong ◽  
Jie Xu ◽  
Hong Miao ◽  
Guanyu Yang ◽  
Hong Ma ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Metal Free ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Oxidation Of Olefins ◽  
Free Oxidation

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.

Noble‐Metal‐Free Ni‐MoO x Nanoparticles Supported on BN as a Highly Efficient Catalyst toward Complete Decomposition of Hydrazine Borane

Small Methods ◽  
2018 ◽  
Vol 2 (12) ◽  
pp. 1800250 ◽  
Author(s):  
Si‐Jia Li ◽  
Xia Kang ◽  
Ba‐Ri Wulan ◽  
Xian‐Lin Qu ◽  
Kun Zheng ◽  
...  
Keyword(s):  
Noble Metal ◽  
Efficient Catalyst ◽  
Metal Free ◽  
Complete Decomposition ◽  
Highly Efficient
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