ChemInform Abstract: A Sakurai-Prins-Ritter Reaction Sequence for the Diastereoselective Synthesis of 4-Amidotetrahydropyrans Catalyzed by Bismuth Triflate.

ChemInform ◽  
2009 ◽  
Vol 40 (3) ◽  
Author(s):  
Gowravaram Sabitha ◽  
M. Bhikshapathi ◽  
Sambit Nayak ◽  
J. S. Yadav ◽  
R. Ravi ◽  
...  
Keyword(s):  
Ritter Reaction ◽  
Diastereoselective Synthesis ◽  
Reaction Sequence ◽  
Bismuth Triflate

A Sakurai–Prins–Ritter reaction sequence for the diastereoselective synthesis of 4-amidotetrahydropyrans catalyzed by bismuth triflate

2008 ◽  
Vol 49 (40) ◽  
pp. 5727-5731 ◽  
Author(s):  
Gowravaram Sabitha ◽  
M. Bhikshapathi ◽  
Sambit Nayak ◽  
J.S. Yadav ◽  
R. Ravi ◽  
...  
Keyword(s):  
Ritter Reaction ◽  
Diastereoselective Synthesis ◽  
Reaction Sequence ◽  
Bismuth Triflate

ChemInform Abstract: Three-Component, One-Pot Diastereoselective Synthesis of 4-Amidotetrahydropyrans via the Prins-Ritter Reaction Sequence.

ChemInform ◽  
2008 ◽  
Vol 39 (38) ◽  
Author(s):  
J. S. Yadav ◽  
B. V. Subba Reddy ◽  
S. Aravind ◽  
G. G. K. S. Narayana Kumar ◽  
C. Madhavi ◽  
...  
Keyword(s):  
Ritter Reaction ◽  
Diastereoselective Synthesis ◽  
Reaction Sequence ◽  
One Pot

Three-component, one-pot diastereoselective synthesis of 4-amidotetrahydropyrans via the Prins–Ritter reaction sequence

Tetrahedron ◽  
2008 ◽  
Vol 64 (13) ◽  
pp. 3025-3031 ◽  
Author(s):  
J.S. Yadav ◽  
B.V. Subba Reddy ◽  
S. Aravind ◽  
G.G.K.S. Narayana Kumar ◽  
C. Madhavi ◽  
...  
Keyword(s):  
Ritter Reaction ◽  
Diastereoselective Synthesis ◽  
Reaction Sequence ◽  
One Pot

ChemInform Abstract: Bismuth-Triflate-Catalyzed Prins-Ritter Reaction - An Efficient Synthesis of 4-Amidotetrahydropyrans.

ChemInform ◽  
2009 ◽  
Vol 40 (1) ◽  
Author(s):  
J. S. Yadav ◽  
B. V. Subba Reddy ◽  
D. N. Chaya ◽  
G. G. K. S. Narayana Kumar
Keyword(s):  
Ritter Reaction ◽  
Efficient Synthesis ◽  
Bismuth Triflate

Synthesis of amides using the Ritter reaction with bismuth triflate catalysis

2006 ◽  
Vol 47 (49) ◽  
pp. 8699-8701 ◽  
Author(s):  
Emmanuel Callens ◽  
Andrew J. Burton ◽  
Anthony G.M. Barrett
Keyword(s):  
Ritter Reaction ◽  
The Ritter Reaction ◽  
Bismuth Triflate

Synthesis of Amides Using the Ritter Reaction with Bismuth Triflate Catalysis.

ChemInform ◽  
2007 ◽  
Vol 38 (13) ◽  
Author(s):  
Emmanuel Callens ◽  
Andrew J. Burton ◽  
Anthony G. M. Barrett
Keyword(s):  
Ritter Reaction ◽  
The Ritter Reaction ◽  
Bismuth Triflate

ChemInform Abstract: Triflic Acid Promoted Aza-Prins-Ritter Reaction Sequence: A Novel Synthesis of 4-Amidopiperidine Derivatives.

ChemInform ◽  
2011 ◽  
Vol 42 (18) ◽  
pp. no-no
Author(s):  
B. V. S. Reddy ◽  
K. Ramesh ◽  
A. V. Ganesh ◽  
G. G. K. S. N. Kumar ◽  
J. S. Yadav ◽  
...  
Keyword(s):  
Ritter Reaction ◽  
Triflic Acid ◽  
Reaction Sequence ◽  
Novel Synthesis

Bismuth-triflate-catalyzed Prins–Ritter reaction — An efficient synthesis of 4-amidotetrahydropyrans

2008 ◽  
Vol 86 (8) ◽  
pp. 769-773 ◽  
Author(s):  
J S Yadav ◽  
B V Subba Reddy ◽  
D N Chaya ◽  
GG KS Narayana Kumar
Keyword(s):  
Ambient Temperature ◽  
Carbonyl Compound ◽  
Lewis Acid ◽  
Ritter Reaction ◽  
Efficient Synthesis ◽  
Prins Cyclization ◽  
Three Component Reaction ◽  
High Yields ◽  
Bismuth Triflate

Bismuth(III) triflate is found to be an effective Lewis acid in catalyzing a three-component reaction of homoallylic alcohol, carbonyl compound, and nitrile at ambient temperature via the Prins–Ritter sequence to furnish 4-amidotetrahydropyrans in high yields, all with cis selectivity. Spirocyclic 4-amidotetrahydropyrans are obtained in case of cyclic ketones.Key words: Prins cyclization, bismuth(III) triflate, homoallyl alcohol, 4-amidotetrahydropyrans.

Diastereoselective Synthesis of CF3-Substituted Spiroisochromans by [1,5]-Hydride Shift/Cyclization/Intramolecular Friedel–Crafts Reaction Sequence

2019 ◽  
Vol 21 (7) ◽  
pp. 2383-2387 ◽  
Author(s):  
Risa Tamura ◽  
Eriko Kitamura ◽  
Ryosuke Tsutsumi ◽  
Masahiro Yamanaka ◽  
Takahiko Akiyama ◽  
...  
Keyword(s):  
Diastereoselective Synthesis ◽  
Reaction Sequence ◽  
Hydride Shift
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