scholarly journals Direct Transition-Metal-Free Intramolecular Arylation of Phenols

2008 ◽  
Vol 10 (20) ◽  
pp. 4625-4628 ◽  
Author(s):  
Gan B. Bajracharya ◽  
Olafs Daugulis
Keyword(s):  
Transition Metal ◽  
Direct Transition ◽  
Metal Free

scholarly journals Metal Free Amino-Oxidation of Electron Rich Alkenes Mediated by an Oxoammonium Salt

2020 ◽  
Author(s):  
Alexandra Millimaci ◽  
Rowan Meador ◽  
Sara Dampf ◽  
John D. Chisholm
Keyword(s):  
Transition Metal ◽  
Solvent Effects ◽  
Free Amino ◽  
Oxidation Products ◽  
Direct Transition ◽  
Metal Free ◽  
Mild Conditions ◽  
Relative Stereochemistry ◽  
Oxoammonium Salt

<div> <div> <div> <p>4-Acetamido-2,2,6,6-tetramethyl-1-oxopiperidinium tetrafluoroborate (Bobbitt’s salt) effectively activates electron rich alkenes and promotes the addition of anilines. This transformation provides a direct, transition metal free method for amino-oxidation of alkenes under mild conditions. The relative stereochemistry of the amino-oxidation is influenced by solvent effects, with both the syn and anti amino-oxidation products being accessible from identical starting materials. </p> </div> </div> </div>

ChemInform Abstract: Direct Transition Metal Free C-S Bond Formation: Synthesis of 2-Aminobenzothiazole Derivatives via Base-Mediated Approach.

ChemInform ◽  
2012 ◽  
Vol 43 (47) ◽  
pp. no-no
Author(s):  
Rui Wang ◽  
Zhi Chen ◽  
Liang Yue ◽  
Wei Pan ◽  
Jun-Jie Zhao
Keyword(s):  
Transition Metal ◽  
Bond Formation ◽  
Direct Transition ◽  
Metal Free

Direct transition metal-free C–S bond formation: synthesis of 2-aminobenzothiazole derivatives via base-mediated approach

2012 ◽  
Vol 53 (34) ◽  
pp. 4529-4531 ◽  
Author(s):  
Rui Wang ◽  
Zhi Chen ◽  
Liang Yue ◽  
Wei Pan ◽  
Jun-Jie Zhao
Keyword(s):  
Transition Metal ◽  
Bond Formation ◽  
Direct Transition ◽  
Metal Free

scholarly journals Metal Free Amino-Oxidation of Electron Rich Alkenes Mediated by an Oxoammonium Salt

2020 ◽  
Author(s):  
Alexandra Millimaci ◽  
Rowan Meador ◽  
Sara Dampf ◽  
John D. Chisholm
Keyword(s):  
Transition Metal ◽  
Solvent Effects ◽  
Free Amino ◽  
Oxidation Products ◽  
Direct Transition ◽  
Metal Free ◽  
Mild Conditions ◽  
Relative Stereochemistry ◽  
Oxoammonium Salt

<div> <div> <div> <p>4-Acetamido-2,2,6,6-tetramethyl-1-oxopiperidinium tetrafluoroborate (Bobbitt’s salt) effectively activates electron rich alkenes and promotes the addition of anilines. This transformation provides a direct, transition metal free method for amino-oxidation of alkenes under mild conditions. The relative stereochemistry of the amino-oxidation is influenced by solvent effects, with both the syn and anti amino-oxidation products being accessible from identical starting materials. </p> </div> </div> </div>

ChemInform Abstract: Direct Transition-Metal-Free Intramolecular C-O Bond Formation: Synthesis of Benzoxazole Derivatives.

ChemInform ◽  
2011 ◽  
Vol 42 (23) ◽  
pp. no-no
Author(s):  
Jinsong Peng ◽  
Cuijuan Zong ◽  
Min Ye ◽  
Tonghui Chen ◽  
Dewei Gao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Bond Formation ◽  
Direct Transition ◽  
Metal Free

Transition-metal-free halocarbocyclisation of acrylamides using K2S2O8

2017 ◽  
Vol 41 (6) ◽  
pp. 352-357 ◽  
Author(s):  
Haiwei Ye ◽  
Liping Zhou ◽  
Yunhua Chen ◽  
Jun Qiu
Keyword(s):  
Transition Metal ◽  
Bond Formation ◽  
Direct Transition ◽  
Metal Free ◽  
Novel Strategy

A novel and direct transition-metal-free oxidative halocarbocyclisation of acrylamides using inexpensive KX (X = I, Br, Cl) and K2S2O8 has been developed. This methodology not only provides an efficient way to construct valuable halogenated oxindoles in good to excellent yields, but also represents a novel strategy for C–X and C–C bond formation.

Direct transition-metal-free intramolecular C–O bond formation: synthesis of benzoxazole derivatives

2011 ◽  
Vol 9 (4) ◽  
pp. 1225-1230 ◽  
Author(s):  
Jinsong Peng ◽  
Cuijuan Zong ◽  
Min Ye ◽  
Tonghui Chen ◽  
Dewei Gao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Bond Formation ◽  
Direct Transition ◽  
Metal Free
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