Regioselective Benzoyloxylative Dearomatization of Naphthols by Benzoyl Peroxide under Catalyst-Free Conditions

2021 ◽  
Author(s):  
Hongwei Chen ◽  
Qin-Hua Song
Keyword(s):  
Benzoyl Peroxide ◽  
Room Temperature ◽  
Catalyst Free ◽  
Air Atmosphere

A direct regioselective benzoyloxylative dearomatization of both α- and β-naphthols by benzoyl peroxide under air atmosphere, radical inhibitor- and catalyst-free conditions at room temperature is described. The methodology provides a...

Visible-light-initiated Catalyst-free Oxidative Cleavage of Triaryl-Substituted Alkenes C=C Bonds under Ambient Conditions

2021 ◽  
Author(s):  
Wenjing Li ◽  
Shun Li ◽  
Lihua Luo ◽  
Yichen Ge ◽  
Jiaqi Xu ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Ambient Air ◽  
Oxidative Cleavage ◽  
Ambient Conditions ◽  
Blue Led ◽  
Catalyst Free

The catalyst-free oxidative cleavage of (Z)-triaryl-substituted alkenes bearing pyridyl motif with ambient air under irradiation of blue LED at room temperature has been developed. The reaction was facile and scalable,...

An efficient construction of CN bond under catalyst‐free and room temperature conditions

2021 ◽  
Vol 58 (5) ◽  
pp. 1179-1191
Author(s):  
Jinpeng Zhang ◽  
Jing Liu ◽  
Lei Dai ◽  
Yuqian Ge ◽  
Linlin Xu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Catalyst Free ◽  
Temperature Conditions ◽  
Efficient Construction

Catalyst-free synthesis of 3,1-benzoxathiin-4-ones/1,3-benzodioxin-4-ones

2021 ◽  
Vol 19 (7) ◽  
pp. 1508-1513
Author(s):  
Sengodagounder Muthusamy ◽  
Muthukumar Malarvizhi ◽  
Eringathodi Suresh
Keyword(s):  
Precise Method ◽  
Propargylic Alcohols ◽  
Catalyst Free ◽  
Air Atmosphere

An unambiguous and precise method for the synthesis of 3,1-benzoxathiin-4-ones/1,3-benzodioxin-4-ones by the reaction of propargylic alcohols and salicylic/thiosalicylic acids under a catalyst-free and open-air atmosphere is described.

Porphyrin-Catalyzed Oxidation of N-Substituted Tetrahydroisoquinolines to Dihydroisoquinolones

Synlett ◽  
2021 ◽  
Author(s):  
Ao Li ◽  
Bin Pan ◽  
Mu Chao ◽  
Na Wang ◽  
Yu-Long Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Air Atmosphere ◽  
Wide Range ◽  
Convenient Route ◽  
Catalyzed Oxidation

A visible-light-induced direct α-oxygenation of N-substituted tetrahydroisoquinoline derivatives has been successfully developed. Metalloporphyrin (ZnTPP) has been identified as an effective and inexpensive photocatalyst for this transformation with a wide range of substrates. This protocol provides a convenient route to afford the desired products in moderate to good yields at room temperature under air atmosphere.

Room-Temperature, Water-Promoted, Radical-Coupling Reactions of Phenols with tert-Butyl Nitrite

Synlett ◽  
2017 ◽  
Vol 28 (16) ◽  
pp. 2153-2156 ◽  
Author(s):  
Wen-Ting Wei ◽  
Hongze Liang ◽  
Wen-Ming Zhu ◽  
Weida Liang ◽  
Yi Wu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Phenol Derivative ◽  
Tert Butyl ◽  
Radical Coupling ◽  
Air Atmosphere ◽  
Cross Coupling Reaction ◽  
Temperature Water

A radical–radical cross-coupling reaction of phenols with tert-butyl nitrite has been developed with the use of water as an additive. This method allows the construction of C–N bonds under an air atmosphere at room temperature, providing the ortho-nitrated phenol derivative in moderate to good yields.

ChemInform Abstract: A Catalyst-Free N-Benzyloxycarbonylation of Amines in Aqueous Micellar Media at Room Temperature.

ChemInform ◽  
2008 ◽  
Vol 39 (47) ◽  
Author(s):  
Janhavi J. Shrikhande ◽  
Manoj B. Gawande ◽  
Radha V. Jayaram
Keyword(s):  
Room Temperature ◽  
Micellar Media ◽  
Catalyst Free

Catalyst-Free Oxidative [3+2] Cycloaddition of Phenols and Styrenes in the Presence of a 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone/1,1,1,3,3,3-hexafluoropropan-2-ol System

Synlett ◽  
2017 ◽  
Vol 28 (19) ◽  
pp. 2619-2623 ◽  
Author(s):  
Yunxia Wang ◽  
Na Cui ◽  
Yu Zhao
Keyword(s):  
Room Temperature ◽  
Catalyst Free

A catalyst-free oxidative [3+2] cycloaddition of phenols and styrenes was developed with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone as the oxidant and 1,1,1,3,3,3-hexafluoropropan-2-ol as the solvent at room temperature. With this method, a broad range of dihydrobenzofurans were efficiently and quickly obtained from readily available phenols and styrenes.

Sodium sulphide promoted synthesis of fused quinoline at room temperature

2021 ◽  
Author(s):  
Rashmi Singh ◽  
Vishal Prasad Sharma ◽  
Priyanka Yadav ◽  
Priyanka Sonker ◽  
Radhey Mohan Singh ◽  
...  
Keyword(s):  
Room Temperature ◽  
Sodium Sulphide ◽  
Catalyst Free

A novel, simple and eco-friendly strategy for the synthesis of thiopyrano[4,3-b]quinolin-1-ones and pyrrolo[3,4-b]quinolin-1-ones from 2-alkynylquinoline-3-carbonitriles and sodium sulphide (Na2S·9H2O) under catalyst-free conditions at RT.

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