ChemInform Abstract: FORMATION OF QUATERNARY CARBON CENTERS FROM TERTIARY ALCOHOLS BY FREE RADICAL METHODS

1985 ◽  
Vol 16 (25) ◽  
Author(s):  
D. H. R. BARTON ◽  
D. CRICH
Keyword(s):  
Free Radical ◽  
Quaternary Carbon ◽  
Tertiary Alcohols ◽  
Carbon Centers

scholarly journals Synergistic Brønsted/Lewis Acid Catalyzed Aromatic Alkylation with Unactivated Tertiary Alcohols or Di-tert-Butylperoxide to Synthesize Quaternary Carbon Centers

2021 ◽  
Author(s):  
Aaron Pan ◽  
Maja Chojnacka ◽  
Robert Crowley ◽  
Lucas Gottemann ◽  
Brandon Haines ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Lewis Acid ◽  
Acid Catalysis ◽  
Alkylating Agents ◽  
Environmentally Benign ◽  
Quaternary Carbon ◽  
Tertiary Alcohols ◽  
Carbon Centers ◽  
Acid Catalyzed ◽  
Site Selective

Dual Brønsted/Lewis acid catalysis involving environmentally benign, readily accessible protic acid and iron promotes site-selective tert-butylation of electron-rich arenes using di-tert-butylperoxide. This transformation inspired the development of a synergistic Brønsted/Lewis acid catalyzed aromatic alkylation that fills a gap in the Friedel–Crafts reaction literature by employing unactivated tertiary alcohols as alkylating agents, leading to new quaternary carbon centers. Corroborated by DFT calculations, the Lewis acid serves a role in enhancing the acidity of the Brønsted acid. The use of non-allylic, non-benzylic, and non-propargylic tertiary alcohols represents an underexplored area in Friedel–Crafts reactivity.

scholarly journals FORMATION OF QUATERNARY CARBON CENTERS FROM TERTIARY NITRO COMPOUNDS BY FREE RADICAL METHODS

1985 ◽  
Vol 14 (5) ◽  
pp. 635-638 ◽  
Author(s):  
Noboru Ono ◽  
Hideyoshi Miyake ◽  
Aritsune Kaji
Keyword(s):  
Free Radical ◽  
Nitro Compounds ◽  
Quaternary Carbon ◽  
Carbon Centers

Stereocontrolled Synthesis of Highly Functionalized Quaternary Carbon Centers: A Route to α-Substituted Serines

2009 ◽  
Vol 121 (23) ◽  
pp. 4266-4269 ◽  
Author(s):  
Xavier Ariza ◽  
Josep Cornellà ◽  
Mercè Font-Bardia ◽  
Jordi Garcia ◽  
Jordi Ortiz ◽  
...  
Keyword(s):  
Quaternary Carbon ◽  
Carbon Centers ◽  
Stereocontrolled Synthesis

Alkylation of (η6-arene) - Ru(II) complexes: Construction of benzylic quaternary carbon centers

1999 ◽  
Vol 40 (12) ◽  
pp. 2251-2254 ◽  
Author(s):  
F.Christopher Pigge ◽  
Shiyue Fang ◽  
Nigam P Rath
Keyword(s):  
Quaternary Carbon ◽  
Carbon Centers
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