scholarly journals Photoinduced Formation of Hybrid Aryl Pd-Radical Species Capable of 1,5-HAT: Selective Catalytic Oxidation of Silyl Ethers into Silyl Enol Ethers

2016 ◽  
Vol 138 (20) ◽  
pp. 6340-6343 ◽  
Author(s):  
Marvin Parasram ◽  
Padon Chuentragool ◽  
Dhruba Sarkar ◽  
Vladimir Gevorgyan
Keyword(s):  
Catalytic Oxidation ◽  
Radical Species ◽  
Enol Ethers ◽  
Silyl Ethers ◽  
Silyl Enol Ethers ◽  
Selective Catalytic Oxidation

13C magnetic resonance studies. 124. Preparative ring expansions of bicyclic ketones by homoketonization of cyclopropoxide analogs

1986 ◽  
Vol 64 (7) ◽  
pp. 1390-1399 ◽  
Author(s):  
Vijay Patel ◽  
Arthur J. Ragauskas ◽  
J. B. Stothers
Keyword(s):  
Magnetic Resonance ◽  
Ring Expansion ◽  
Synthetic Method ◽  
Expansion Process ◽  
Enol Ethers ◽  
Magnetic Resonance Studies ◽  
Silyl Ethers ◽  
Silyl Enol Ethers ◽  
Ring Expansions ◽  
Bicyclic Ketones

Homoketonization of some readily prepared cyclopropoxides provides a new synthetic method for ring expansion of the [2.2.1] and [2.2.2] ring systems. Cyclopropanation of the trimethylsilyl enol ethers derived from a variety of polycyclic ketones affords the required cyclopropyl silyl ethers, which may be ketonized directly or hydrolyzed to the corresponding cyclopropanols before ketonization. The results for fourteen examples serve to define the scope of the ring expansion process, and the silyl enol ethers, cyclopropyl silyl ethers, and most of the corresponding cyclopropanols have been characterized by 13Cmr. The stereochemistry of the ketonization leading to ring expansion has been established by deuterium labelling experiments.

HClO4 catalysed aldol-type reaction of fluorinated silyl enol ethers with acetals or ketals toward fluoroalkyl ethers

2019 ◽  
Vol 17 (43) ◽  
pp. 9430-9434 ◽  
Author(s):  
You-Ping Tian ◽  
Yi Gong ◽  
Xiao-Si Hu ◽  
Jin-Sheng Yu ◽  
Ying Zhou ◽  
...  
Keyword(s):  
Enol Ethers ◽  
Silyl Ethers ◽  
Silyl Enol Ethers ◽  
Metal Free ◽  
Type Reaction ◽  
Highly Efficient ◽  
Enol Silyl Ethers

A highly efficient metal-free catalytic aldol-type reaction of fluorinated enol silyl ethers and acetals/ketals toward functionalized fluoroalkyl ethers is developed by using less than 1.0 mol% HClO4 (70 wt%, aq.).

Organocatalytic enantioselective Mukaiyama–Mannich reaction of fluorinated enol silyl ethers and cyclic N-sulfonyl ketimines

2016 ◽  
Vol 3 (3) ◽  
pp. 298-303 ◽  
Author(s):  
Jin-Sheng Yu ◽  
Jian Zhou
Keyword(s):  
Amino Acid ◽  
Mannich Reaction ◽  
Enantioselective Synthesis ◽  
Amino Acid Derivatives ◽  
Enol Ethers ◽  
Silyl Ethers ◽  
Silyl Enol Ethers ◽  
Catalytic Asymmetric ◽  
Enol Silyl Ethers

The first catalytic asymmetric Mukaiyama–Mannich reaction of fluorinated silyl enol ethers and ketimines is developed, allowing highly enantioselective synthesis of benzosultam based β-fluorinated Cα-tetrasubstituted α-amino acid derivatives.

Rhodium-Catalyzed Dehydrogenative Silylation of Acetophenone Derivatives: Formation of Silyl Enol Ethers versus Silyl Ethers

2016 ◽  
Vol 22 (41) ◽  
pp. 14717-14729 ◽  
Author(s):  
Karin Garcés ◽  
Ralte Lalrempuia ◽  
Víctor Polo ◽  
Francisco J. Fernández-Alvarez ◽  
Pilar García-Orduña ◽  
...  
Keyword(s):  
Enol Ethers ◽  
Silyl Ethers ◽  
Silyl Enol Ethers ◽  
Acetophenone Derivatives

ChemInform Abstract: Catalytic Oxidation of Silyl Enol Ethers to 1,2-Diketones Employing Nitroxyl Radicals.

ChemInform ◽  
2012 ◽  
Vol 43 (33) ◽  
pp. no-no
Author(s):  
Masaki Hayashi ◽  
Masatoshi Shibuya ◽  
Yoshiharu Iwabuchi
Keyword(s):  
Catalytic Oxidation ◽  
Nitroxyl Radicals ◽  
Enol Ethers ◽  
Silyl Enol Ethers

Stereoselective Synthesis of Silyl Enol Ethers via the Iridium-Catalyzed Isomerization of Allyl Silyl Ethers

1999 ◽  
Vol 18 (3) ◽  
pp. 413-416 ◽  
Author(s):  
Toshimichi Ohmura ◽  
Yasunori Yamamoto ◽  
Norio Miyaura
Keyword(s):  
Stereoselective Synthesis ◽  
Enol Ethers ◽  
Silyl Ethers ◽  
Silyl Enol Ethers

Catalytic Oxidation of Silyl Enol Ethers to 1,2-Diketones Employing Nitroxyl Radicals

Synlett ◽  
2012 ◽  
Vol 23 (07) ◽  
pp. 1025-1030 ◽  
Author(s):  
Yoshiharu Iwabuchi ◽  
Masaki Hayashi ◽  
Masatoshi Shibuya
Keyword(s):  
Catalytic Oxidation ◽  
Nitroxyl Radicals ◽  
Enol Ethers ◽  
Silyl Enol Ethers
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