Oxidative rearrangements of tertiary and some secondary allylic alcohols with chromium(VI) reagents. A new method for 1,3-functional group transposition and forming mixed aldol products

1977 ◽  
Vol 42 (5) ◽  
pp. 813-819 ◽  
Author(s):  
Padmanabhan Sundararaman ◽  
Werner Herz
Keyword(s):  
Functional Group ◽  
New Method ◽  
Allylic Alcohols ◽  
Chromium Vi

Enantioselective alpha-Arylation of Benzamides via Synergistic Nickel and Metallaphotoredox Catalysis

2019 ◽  
Author(s):  
John Montgomery ◽  
Alexander W. Rand
Keyword(s):  
Catalytic System ◽  
Functional Group ◽  
Enantiomeric Excess ◽  
New Method ◽  
Aryl Bromides

A new method to access alpha-arylated benzamides has been enabled by metallaphotoredox catalysis. This system allows for non-directed C–H functionalization of N-alkyl benzamides using a dual nickel/iridium catalytic system to form tertiary stereocenters in good enantiomeric excess and moderate yields. This reaction shows excellent functional group compatibility and can be performed using a number of sterically and electronically different aryl bromides and secondary benzamides.

Enantioselective alpha-Arylation of Benzamides via Synergistic Nickel and Metallaphotoredox Catalysis

2019 ◽  
Author(s):  
John Montgomery ◽  
Alexander W. Rand
Keyword(s):  
Catalytic System ◽  
Functional Group ◽  
Enantiomeric Excess ◽  
New Method ◽  
Aryl Bromides

A new method to access alpha-arylated benzamides has been enabled by metallaphotoredox catalysis. This system allows for non-directed C–H functionalization of N-alkyl benzamides using a dual nickel/iridium catalytic system to form tertiary stereocenters in good enantiomeric excess and moderate yields. This reaction shows excellent functional group compatibility and can be performed using a number of sterically and electronically different aryl bromides and secondary benzamides.

Direct and metal-free oxidative amination of sp3 C–H bonds for the construction of 2-hetarylquinazolin-4(3H)-ones

2016 ◽  
Vol 3 (9) ◽  
pp. 1096-1099 ◽  
Author(s):  
Huanhuan Liu ◽  
Tianran Zhai ◽  
Shiteng Ding ◽  
Yalei Hou ◽  
Xiangyu Zhang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Functional Group ◽  
New Method ◽  
Oxidative Amination ◽  
Metal Free ◽  
Mild Conditions

New method for synthesis of 2-hetarylquinazolin-4(3H)-ones from 2-aminobenzamides and (2-azaaryl)methanes under transition-metal free conditions, featuring a wide substrate scope with a broad range of functional group tolerance under mild conditions.

A Domino Heck Coupling–Cyclization–Dehydrogenative Strategy for the One-Pot Synthesis of Quinolines

Synthesis ◽  
2021 ◽  
Author(s):  
Santanu Ghora ◽  
Chinnabattigalla Sreenivasulu ◽  
Gedu Satyanarayana
Keyword(s):  
Functional Group ◽  
Exchange Process ◽  
Palladium Catalysis ◽  
Allylic Alcohols ◽  
Heck Coupling ◽  
One Pot ◽  
Synthetic Process ◽  
Intramolecular Condensation ◽  
The One

AbstractAn efficient, one-pot, domino synthesis of quinolines via the coupling of iodoanilines with allylic alcohols facilitated by palladium catalysis is described. The overall synthetic process involves an intermolecular Heck coupling between 2-iodoanilines and allylic alcohols, intramolecular condensation of in situ generated ketones with an internal amine functional group, and a dehydrogenation sequence. Notably, this protocol occurs in water as a green solvent. Significantly, the method exhibits broad substrate scope and is applied for the synthesis of deuterated quinolines through a deuterium-exchange process.

Fast construction of dianthraceno[a,e]pentalenes for OPV applications

2017 ◽  
Vol 4 (5) ◽  
pp. 711-716 ◽  
Author(s):  
Zhongbo Zhang ◽  
Haijun Fan ◽  
Xiaozhang Zhu
Keyword(s):  
Functional Group ◽  
New Method ◽  
Tandem Reaction ◽  
Palladium Catalyzed

A new method based on a palladium-catalyzed tandem reaction for the fast construction of a dianthraceno[a,e]pentalene (DAP) framework is developed, which gave a series of dianthraceno[a,e]pentalenes with good functional group tolerance, and it should be highlighted that five C–C bonds were formed in one reaction.

Titanium carbenoid-mediated cyclopropanation of allylic alcohols: selectivity and mechanism

2015 ◽  
Vol 13 (22) ◽  
pp. 6325-6332 ◽  
Author(s):  
M. J. Durán-Peña ◽  
J. M. Botubol-Ares ◽  
J. R. Hanson ◽  
R. Hernández-Galán ◽  
I. G. Collado
Keyword(s):  
New Method ◽  
Allylic Alcohols ◽  
Cyclopropane Derivatives

A new method for the chemo- and stereoselective conversion of allylic alcohols into the corresponding cyclopropane derivatives has been developed using a titanium carbenoid. The scope, limitations and mechanism are discussed.

A New Method for the 1,3-Hydroxy-Transposition in Allylic Alcohols via Allylic Stannanes

Synthesis ◽  
1980 ◽  
Vol 1980 (12) ◽  
pp. 1011-1013 ◽  
Author(s):  
Yoshio Ueno ◽  
Hiroshi Sano ◽  
Makoto Okawara
Keyword(s):  
New Method ◽  
Allylic Alcohols
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