ChemInform Abstract: Synthesis of Di- and Tetrahydrofurans Using the Prins Reaction in Trifluoroacetic Acid.

ChemInform ◽  
2010 ◽  
Vol 25 (20) ◽  
pp. no-no
Author(s):  
R. F. TALIPOV ◽  
A. S. STARIKOV ◽  
I. A. GORINA ◽  
N. A. AKMANOVA ◽  
M. G. SAFAROV
Keyword(s):  
Trifluoroacetic Acid ◽  
Prins Reaction

THE PRINS REACTION WITH β,γ-UNSATURATED ACIDS AND AMIDES

1957 ◽  
Vol 35 (7) ◽  
pp. 673-676 ◽  
Author(s):  
B. Belleau
Keyword(s):  
Trifluoroacetic Acid ◽  
Prins Reaction ◽  
Acid Catalyzed

The acid catalyzed condensation of cyclohexenylacetic acid and its corresponding N-methylamide with formaldehyde was investigated. Good yields of the expected δ-lactone (V) or δ-lactam (IX) were obtained when trifluoroacetic acid was used both as catalyst and solvent for the reaction.

scholarly journals Correction to: On the Prins reaction of terminal olefins and formaldehyde in trifluoroacetic acid

2018 ◽  
Vol 54 (7) ◽  
pp. 758-758
Author(s):  
Hasanain A. A. Almohseni ◽  
Matthew A. H. Stent ◽  
David M. Hodgson
Keyword(s):  
Trifluoroacetic Acid ◽  
Prins Reaction ◽  
Terminal Olefins

scholarly journals Correction to: On the Prins reaction of terminal olefins and formaldehyde in trifluoroacetic acid

2018 ◽  
Vol 54 (6) ◽  
pp. 674-674
Author(s):  
Hasanain A. A. Almohseni ◽  
Matthew A. H. Stent ◽  
David M. Hodgson
Keyword(s):  
Trifluoroacetic Acid ◽  
Prins Reaction ◽  
Terminal Olefins

scholarly journals On the Prins reaction of terminal olefins and formaldehyde in trifluoroacetic acid

2018 ◽  
Vol 54 (4) ◽  
pp. 474-477 ◽  
Author(s):  
Hasanain A. A. Almohseni ◽  
Matthew A. H. Stent ◽  
David M. Hodgson
Keyword(s):  
Trifluoroacetic Acid ◽  
Prins Reaction ◽  
Terminal Olefins

Formation and Trapping of the Thermodynamically Unfavoured Inverted-Hemicucurbit[6]uril

2019 ◽  
Author(s):  
Elena Prigorchenko ◽  
Sandra Kaabel ◽  
Triin Narva ◽  
Anastassia Baškir ◽  
Maria Fomitšenko ◽  
...  
Keyword(s):  
Complex Formation ◽  
Combinatorial Chemistry ◽  
Trifluoroacetic Acid ◽  
Chloride Anion ◽  
Binding Affinities ◽  
Dynamic Covalent Chemistry ◽  
Reaction Selectivity ◽  
Low Concentration ◽  
Dynamic Combinatorial Chemistry ◽  
First Time

Amplification of a thermodynamically unfavoured macrocyclic product through the directed shift of the equilibrium between dynamic covalent chemistry library members is difficult to achieve. We show for the first time that during condensation of formaldehyde and <i>cis</i>-<i>N,N'</i>-cyclohexa-1,2-diylurea formation of <i>inverted-cis</i>-cyclohexanohemicucurbit[6]uril (<i>i-cis</i>-cycHC[6]) can be induced at the expense of thermodynamically favoured <i>cis</i>-cyclohexanohemicucurbit[6]uril (<i>cis</i>-cycHC[6]). The formation of <i>i-cis-</i>cycHC[6] is enhanced in low concentration of the templating chloride anion and suppressed in excess of this template. We found that reaction selectivity is governed by the solution-based template-aided dynamic combinatorial chemistry and continuous removal of the formed cycHC[6] macrocycles from the equilibrating solution by precipitation. Notably, the <i>i-cis</i>-cycHC[6] was isolated with 33% yield. Different binding affinities of three diastereomeric <i>i-cis</i>-, <i>cis</i>-cycHC[6] and their chiral isomer (<i>R,R</i>)-cycHC[6] for trifluoroacetic acid demonstrate the influence of macrocycle geometry on complex formation.

ipso-Nitration of Arylboronic Acids with Copper Nitrate and Trifluoroacetic Acid

2018 ◽  
Vol 15 (10) ◽  
pp. 891-894 ◽  
Author(s):  
Zhu-Qing Wang ◽  
Meng-Ping Guo ◽  
Yong-Ju Wen ◽  
Xiu-Li Shen ◽  
Mei-Yun Lv ◽  
...  
Keyword(s):  
Trifluoroacetic Acid ◽  
Copper Nitrate ◽  
Arylboronic Acids
Sign in / Sign up

Export Citation Format

Share Document