Silver-initiated radical ring expansion/fluorination of ethynyl cyclobutanols: efficient synthesis of monofluoroethenyl cyclopentanones

2016 ◽  
Vol 18 (23) ◽  
pp. 6236-6240 ◽  
Author(s):  
Qingshan Tian ◽  
Bin Chen ◽  
Guozhu Zhang
Keyword(s):  
Stereoselective Synthesis ◽  
Ring Expansion ◽  
Efficient Synthesis ◽  
Radical Ring

A stereoselective synthesis of β-halogenated 2-methylenecyclopentanones via silver-catalyzed formal ring expansion using water as the cosolvent is described.

Fluorinative Ring-Expansion of Cyclic Ethers Using p-Iodotoluene Difluoride. Stereoselective Synthesis of Fluoro Cyclic Ethers.

ChemInform ◽  
2003 ◽  
Vol 34 (33) ◽  
Author(s):  
Tomotake Inagaki ◽  
Yutaka Nakamura ◽  
Masanori Sawaguchi ◽  
Norihiko Yoneda ◽  
Shinichi Ayuba ◽  
...  
Keyword(s):  
Stereoselective Synthesis ◽  
Ring Expansion ◽  
Cyclic Ethers

scholarly journals Efficient synthesis of α-alkyl-β-amino amides by transaminase-mediated dynamic kinetic resolutions

2019 ◽  
Vol 9 (15) ◽  
pp. 4083-4090 ◽  
Author(s):  
Ángela Mourelle-Insua ◽  
Daniel Méndez-Sánchez ◽  
James L. Galman ◽  
Iustina Slabu ◽  
Nicholas J. Turner ◽  
...  
Keyword(s):  
Kinetic Resolution ◽  
Stereoselective Synthesis ◽  
Efficient Synthesis ◽  
Dynamic Kinetic Resolution ◽  
Amino Amides ◽  
Kinetic Resolutions

A transaminase-catalyzed dynamic kinetic resolution is described for the stereoselective synthesis of a series of α-alkyl-β-amino amides.

scholarly journals Unexpected isocyanide-based three-component bicyclization for the stereoselective synthesis of densely functionalized pyrano[3,4-c]pyrroles

2016 ◽  
Vol 52 (5) ◽  
pp. 900-903 ◽  
Author(s):  
Qian Gao ◽  
Wen-Juan Hao ◽  
Feng Liu ◽  
Shu-Jiang Tu ◽  
Shu-Liang Wang ◽  
...  
Keyword(s):  
Stereoselective Synthesis ◽  
Efficient Synthesis ◽  
Dialkyl Acetylenedicarboxylates

A novel three-component bicyclization strategy for the efficient synthesis of densely functionalized pyrano[3,4-c]pyrroles has been established from readily accessible 3-aroylacrylic acids, dialkyl acetylenedicarboxylates and isocyanides.

ChemInform Abstract: Novel Free-Radical Ring-Expansion Reactions.

ChemInform ◽  
1989 ◽  
Vol 20 (21) ◽  
Author(s):  
P. DOWD ◽  
S.-C. CHOI
Keyword(s):  
Free Radical ◽  
Ring Expansion ◽  
Radical Ring

Efficient synthesis of 2,3-trans-tetrahydropyrans and oxepanes: Rearrangement-ring expansion of cyclic ethers having a chloromethanesulfonate

1999 ◽  
Vol 40 (11) ◽  
pp. 2145-2148 ◽  
Author(s):  
Nobuyuki Hori ◽  
Kazuo Nagasawa ◽  
Takeshi Shimizu ◽  
Tadashi Nakata
Keyword(s):  
Ring Expansion ◽  
Cyclic Ethers ◽  
Efficient Synthesis
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