Preparation of Imines by Oxidative Coupling of Benzyl Alcohols with Amines Catalysed by Dicopper Complexes

2013 ◽  
Vol 2013 (23) ◽  
pp. 5160-5164 ◽  
Author(s):  
Yung-Syuan Lan ◽  
Bei-Sih Liao ◽  
Yi-Hong Liu ◽  
Shie-Ming Peng ◽  
Shiuh-Tzung Liu
Keyword(s):  
Oxidative Coupling ◽  
Benzyl Alcohols ◽  
Dicopper Complexes

ChemInform Abstract: Preparation of Imines by Oxidative Coupling of Benzyl Alcohols with Amines Catalyzed by Dicopper Complexes.

ChemInform ◽  
2013 ◽  
Vol 45 (1) ◽  
pp. no-no
Author(s):  
Yung-Syuan Lan ◽  
Bei-Sih Liao ◽  
Yi-Hong Liu ◽  
Shie-Ming Peng ◽  
Shiuh-Tzung Liu
Keyword(s):  
Oxidative Coupling ◽  
Benzyl Alcohols ◽  
Dicopper Complexes

Direct Synthesis of Amides from Oxidative Coupling of Benzyl Alcohols or Benzylamines with N -Substituted Formamides Using a Cu-Fe-Based Heterogeneous Catalyst

2018 ◽  
Vol 3 (29) ◽  
pp. 8436-8443 ◽  
Author(s):  
Shyam Sunder R. Gupta ◽  
Akhil V. Nakhate ◽  
Gunjan P. Deshmukh ◽  
Selvakannan Periasamy ◽  
Priya S. Samudrala ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Oxidative Coupling ◽  
Direct Synthesis ◽  
Benzyl Alcohols

The regioselective coupling of 2-arylquinazolinone C–H with aldehydes and benzyl alcohols under oxidative conditions

2020 ◽  
Vol 44 (39) ◽  
pp. 16697-16701
Author(s):  
Umesh A. Kshirsagar ◽  
Deepali S. Waghmare ◽  
Shrikant D. Tambe
Keyword(s):  
Benzyl Alcohol ◽  
Oxidative Coupling ◽  
Benzyl Alcohols ◽  
Dehydrogenative Coupling ◽  
Palladium Catalyzed ◽  
Directing Group

Palladium catalyzed direct and regioselective cross dehydrogenative coupling (CDC) of 2-arylquinazoline-4-one endowed with a quinazolinone nucleus as an inherent directing group with aldehyde and oxidative coupling with benzyl alcohol was developed.

One-Pot Synthesis and Conformational Analysis of 6-Membered Cyclic Iodonium Salts

2020 ◽  
Author(s):  
Lucien Caspers ◽  
Julian Spils ◽  
Mattis Damrath ◽  
Enno Lork ◽  
Boris Nachtsheim
Keyword(s):  
Conformational Analysis ◽  
Bronsted Acids ◽  
One Pot ◽  
Benzyl Alcohols ◽  
Iodonium Salts ◽  
Efficient Approach ◽  
One Pot Synthesis ◽  
Diaryliodonium Salts

In this article we describe an efficient approach for the synthesis of cyclic diaryliodonium salts. The method is based on benzyl alcohols as starting materials and consists of an Friedel-Crafts-arylation/oxidation sequence. Besides a deep optimization, particluar focusing on the choice and ratios of the utilized Bronsted-acids and oxidants, we explore the substrate scope of this transformation. We also discuss an interesting isomerism of cyclic iodonium salts substituted with aliphatic substituents at the bridge head carbon. <br>

Metal-free Reductive Coupling of Biphenyl Tosylhydrazones with Phenols or Benzyl Alcohols

2017 ◽  
Vol 14 (10) ◽  
Author(s):  
Yang Liu ◽  
Ping Liu ◽  
Yan Liu ◽  
Yu Wei ◽  
Bin Dai
Keyword(s):  
Reductive Coupling ◽  
Benzyl Alcohols ◽  
Metal Free

An Unprecedented Cyano-Induced Sodium Nitrite-Catalyzed C(sp3)-H and C(sp2)-H Coupling Reaction

2018 ◽  
Vol 15 (7) ◽  
pp. 989-994 ◽  
Author(s):  
Ling Li ◽  
Bo Su ◽  
Yuxiu Liu ◽  
Qingmin Wang
Keyword(s):  
Sodium Nitrite ◽  
Oxidative Coupling ◽  
High Resolution Mass Spectrometry ◽  
Coupling Reaction ◽  
13C Nmr Spectroscopy ◽  
Coupling Reactions ◽  
Reaction Conditions ◽  
1H And 13C Nmr ◽  
Oxidative Coupling Reaction ◽  
Oxidative Coupling Reactions

Aim and Objective: During the investigation of sodium nitrite-catalyzed oxidative coupling reaction of aryls, an unprecedented C(sp2)-H and C(sp3)-H coupling of substituted 2-aryl acetonitrile was found. Materials and Methods: The structure of the coupled product was confirmed by 1H and 13C NMR spectroscopy and high-resolution mass spectrometry (HRMS), and comparison of its derivatives with known compounds. The effects of methoxy group in the benzene ring on the reaction were evaluated. Results: The optimized reaction conditions are summarized as follows: CF3SO3H/substrate = 1.5 equiv., NaNO2/substrate = 0.3 equiv., CH3CN as solvent. 2-(4-Methoxyphenyl)acetonitrile and 2-(3,4,5- trimethoxyphenyl)acetonitrile could also generate C(sp2)-H and C(sp3)-H coupling. The coupling reaction occurred as a typical radial mechanism. Conclusion: An unprecedented cyano-induced, NaNO2-catalyzed oxidative C(sp3)-H and C(sp2)-H coupling was reported. The reaction proceeded under very mild conditions, using O2 in the air as terminal oxidant. The unique oxidative manner might provide more inspiration for the development of intriguing oxidative coupling reactions.

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