Solvent-controlled selective synthesis of biphenols and quinones via oxidative coupling of phenols

2017 ◽  
Vol 53 (69) ◽  
pp. 9616-9619 ◽  
Author(s):  
Nagnath Yadav More ◽  
Masilamani Jeganmohan
Keyword(s):  
Oxidative Coupling ◽  
Regioselective Synthesis ◽  
Selective Synthesis ◽  
Ambient Conditions

A regioselective synthesis of unsymmetrical and symmetrical biphenols and binaphtholsviaoxidative coupling of phenols or naphthols in the presence of K2S2O8in CF3COOH under ambient conditions is described.

Oxidative cross S–H/S–H coupling: selective synthesis of unsymmetrical aryl tert-alkyl disulfanes

2015 ◽  
Vol 2 (6) ◽  
pp. 677-680 ◽  
Author(s):  
Jiwen Yuan ◽  
Chao Liu ◽  
Aiwen Lei
Keyword(s):  
Mild Condition ◽  
Oxidative Coupling ◽  
Selective Synthesis ◽  
Efficient Process

Selective oxidative coupling between equivalent aryl and tert-alkyl mercaptans was achieved under mild condition. This protocol may provide an efficient process to synthesize the unsymmetrical aryl tert-alkyl disulfides.

scholarly journals Silica: An efficient catalyst for one-pot regioselective synthesis of dithioethers

2014 ◽  
Vol 10 ◽  
pp. 26-33 ◽  
Author(s):  
Samir Kundu ◽  
Babli Roy ◽  
Basudeb Basu
Keyword(s):  
Silica Gel ◽  
Room Temperature ◽  
Allyl Bromide ◽  
Solvent Free ◽  
Regioselective Synthesis ◽  
Selective Synthesis ◽  
Tandem Reactions ◽  
One Pot ◽  
Efficient Catalyst

The development of a silica-promoted highly selective synthesis of 1,2 or 1,3-dithioethers via solvent-free one-pot tandem reactions of an allyl bromide with excess thiol at room temperature is described. The choice of silica gel, either pre-calcined or moistened with water, exhibited notable regioselectivity in the formation of dithioethers. Plausible mechanistic routes were explored and postulated.

Methyl ester synthesis catalyzed by nanoporous gold: from 10−9 Torr to 1 atm

2015 ◽  
Vol 5 (2) ◽  
pp. 1299-1306 ◽  
Author(s):  
Lu-Cun Wang ◽  
Kara J. Stowers ◽  
Branko Zugic ◽  
Monika M. Biener ◽  
Juergen Biener ◽  
...  
Keyword(s):  
Methyl Ester ◽  
Oxidative Coupling ◽  
Pressure Range ◽  
Methyl Esters ◽  
Nanoporous Gold ◽  
Selective Synthesis ◽  
Ester Synthesis ◽  
Mild Conditions ◽  
Wide Pressure Range ◽  
Wide Pressure

Highly selective synthesis of methyl esters can be achieved by oxidative coupling of methanol and aldehydes (acetaldehyde, butyraldehyde) under mild conditions using unsupported nanoporous gold catalysts over a wide pressure range (from 10−9 Torr to 1 atm).

scholarly journals Regio- and Diastereo-selective Synthesis of Dimeric Lignans Using Oxidative Coupling.

1993 ◽  
Vol 47 ◽  
pp. 610-616 ◽  
Author(s):  
Francesco Chioccara ◽  
Sonia Poli ◽  
Bruno Rindone ◽  
Tullio Pilati ◽  
Gösta Brunow ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Selective Synthesis

Pd(II) supramolecular cage-catalyzed successive oxidative coupling: One-pot and regioselective synthesis of functionalized carbazoles from indoles

2019 ◽  
Vol 124 ◽  
pp. 12-18
Author(s):  
Xi-Ren Wu ◽  
He-Long Peng ◽  
Lian-Qiang Wei ◽  
Li-Ping Li ◽  
Su-Yang Yao ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Regioselective Synthesis ◽  
One Pot

Cu(OAc)2–Et3N mediated oxidative coupling of α-azido ketones with pyridinium ylides: utilizing in situ generated imines for regioselective synthesis of imidazo[1,2-a]pyridines

2015 ◽  
Vol 51 (52) ◽  
pp. 10475-10478 ◽  
Author(s):  
Ahmed Kamal ◽  
Chada Narsimha Reddy ◽  
Malasala Satyaveni ◽  
D. Chandrasekhar ◽  
Jagadeesh Babu Nanubolu ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Regioselective Synthesis ◽  
One Pot ◽  
Pyridinium Ylides

Imidazo[1,2-a]pyridines are synthesized via Cu(OAc)2–Et3N mediated one-pot coupling of pyridines, α-bromo ketones and α-azido ketones.

Visible-light-promoted E-selective synthesis of α-fluoro-β-arylalkenyl sulfides via the deoxygenation/isomerization process

2021 ◽  
Author(s):  
Yuxiu Li ◽  
Xiangqian Li ◽  
Xiaowei Li ◽  
Dayong Shi
Keyword(s):  
Natural Products ◽  
Visible Light ◽  
Late Stage ◽  
Regioselective Synthesis ◽  
Selective Synthesis ◽  
Isomerization Process

Highly E-selective synthesis of α-fluoro-β-arylalkenyl sulfides: regioselective synthesis of α-fluoro-β-arylalkenyl sulfides has been established with gem-difluoroalkenes and sodium arysulfinates via visible-light-induced deoxygenation of S–O bonds and isomerization of alkenes. Moreover, the strategy is also applied in the late-stage modification of complex natural products and drugs.

Copper-catalyzed oxidative coupling of acids with alkanes involving dehydrogenation: facile access to allylic esters and alkylalkenes

2015 ◽  
Vol 51 (12) ◽  
pp. 2361-2363 ◽  
Author(s):  
Cheng-Yong Wang ◽  
Ren-Jie Song ◽  
Wen-Ting Wei ◽  
Jian-Hong Fan ◽  
Jin-Heng Li
Keyword(s):  
Oxidative Coupling ◽  
Selective Synthesis ◽  
Allylic Esters

A new copper-catalyzed oxidative coupling of acids with alkanes for selective synthesis of allylic esters and alkylalkenes is described.

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