A New Synthesis of Primary Amines Usingtert-Butylamine as an Ammonia Equivalent: The Triflic Acid Catalysed Removal ofN-tert-Butyl Groups from Carbamates

Synlett ◽  
1990 ◽  
Vol 1990 (10) ◽  
pp. 621-623 ◽  
Author(s):  
Martyn J. Earle ◽  
Robin A. Fairhurst ◽  
Harry Heaney ◽  
George Papageorgiou
Keyword(s):  
Primary Amines ◽  
Triflic Acid ◽  
Tert Butyl ◽  
New Synthesis

A new synthesis of primary amines from diarylidenesulfamides

1986 ◽  
Vol 27 (34) ◽  
pp. 3957-3960 ◽  
Author(s):  
Franklin A. Davis ◽  
Mark A. Giangiordano ◽  
William E. Starner
Keyword(s):  
Primary Amines ◽  
New Synthesis

scholarly journals Zeolites Catalyze the Nazarov Reaction and the tert-Butylation of Alcohols by Stabilization of Carboxonium Intermediates

Synthesis ◽  
2020 ◽  
Vol 52 (14) ◽  
pp. 2031-2037
Author(s):  
Antonio Leyva-Pérez ◽  
María Tejeda-Serrano ◽  
Sergio Sanz-Navarro ◽  
Finn Blake
Keyword(s):  
Organic Synthesis ◽  
Butyl Acetate ◽  
Strong Acid ◽  
Organic Reactions ◽  
High Yield ◽  
Acid Catalysts ◽  
Nazarov Cyclization ◽  
Triflic Acid ◽  
Nazarov Reaction ◽  
Tert Butyl

Zeolites are the most used catalysts worldwide in petrochemistry processes, with particular ability to stabilize carbocations. However, the use of zeolites in organic synthesis is still scarce. We show here that representative carboxonium-mediated organic reactions, such as the Nazarov cyclization and the tert-butylation of alcohols with tert-butyl acetate, typically performed with very strong acid catalysts in solution such as triflic acid, can be catalyzed by simple zeolites with high yield and selectivity. The aluminosilicate framework stabilizes the intermediate carboxonium species and overrides the need for superacid protons in solution.

Oxidative deamination of sec-alkyl primary amines with 3,5-di-tert-butyl-1,2-benzoquinone; a second look

1988 ◽  
Vol 53 (26) ◽  
pp. 5994-5998 ◽  
Author(s):  
Robert F. X. Klein ◽  
Lisa M. Bargas ◽  
Vaclav Horak
Keyword(s):  
Primary Amines ◽  
Oxidative Deamination ◽  
Tert Butyl ◽  
Second Look

ChemInform Abstract: New Synthesis of Dialkyl 3,5-Di-tert-butyl-4-hydroxybenzylphosphonates.

ChemInform ◽  
2010 ◽  
Vol 25 (10) ◽  
pp. no-no
Author(s):  
N. A. MUKMENEVA ◽  
O. A. CHERKASOVA ◽  
V. KH. KADYROVA
Keyword(s):  
Tert Butyl ◽  
New Synthesis
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