ChemInform Abstract: Group Transfer Addition Reactions of Selenomalononitriles to Chiral Enol Ethers. Asymmetric Radical Addition and Selenium Transfer Reactions.

ChemInform ◽  
2010 ◽  
Vol 26 (2) ◽  
pp. no-no
Author(s):  
D. P. CURRAN ◽  
S. J. GEIB ◽  
L. H. KUO
Keyword(s):  
Radical Addition ◽  
Transfer Reactions ◽  
Addition Reactions ◽  
Enol Ethers ◽  
Group Transfer ◽  
Abstract Group

ChemInform Abstract: GROUP TRANSFER REACTIONS VIA PENTAVALENT PHOSPHORUS INTERMEDIATES

1977 ◽  
Vol 8 (23) ◽  
pp. no-no
Author(s):  
W. G. VONCKEN ◽  
A. M. C. F. CASTELIJNS ◽  
S. A. J. DE LEEUW ◽  
H. M. BUCK
Keyword(s):  
Transfer Reactions ◽  
Pentavalent Phosphorus ◽  
Group Transfer ◽  
Abstract Group

ChemInform Abstract: Group Transfer Reactions Using Benzimidazolides.

ChemInform ◽  
2010 ◽  
Vol 30 (19) ◽  
pp. no-no
Author(s):  
A. V. Karnik ◽  
J. P. Rane
Keyword(s):  
Transfer Reactions ◽  
Group Transfer ◽  
Abstract Group

ChemInform Abstract: Group Transfer Addition Reactions of Methyl(phenylseleno)malononitrile to Alkenes.

ChemInform ◽  
2010 ◽  
Vol 25 (40) ◽  
pp. no-no
Author(s):  
D. P. CURRAN ◽  
E. EICHENBERGER ◽  
M. COLLIS ◽  
M. G. ROEPEL ◽  
G. THOMA
Keyword(s):  
Addition Reactions ◽  
Group Transfer ◽  
Abstract Group

scholarly journals Difunctionalization of Alkenes and Alkynes via Intermolecular Radical and Nucleophilic Additions

Molecules ◽  
2020 ◽  
Vol 26 (1) ◽  
pp. 105
Author(s):  
Hongjun Yao ◽  
Wenfei Hu ◽  
Wei Zhang
Keyword(s):  
Nucleophilic Addition ◽  
High Efficiency ◽  
Radical Addition ◽  
Electrochemical Reactions ◽  
Addition Reactions ◽  
Single Electron Transfer ◽  
Group Transfer ◽  
Wide Range ◽  
Ionic Addition ◽  
Operational Simplicity

Popular and readily available alkenes and alkynes are good substrates for the preparation of functionalized molecules through radical and/or ionic addition reactions. Difunctionalization is a topic of current interest due to its high efficiency, substrate versatility, and operational simplicity. Presented in this article are radical addition followed by oxidation and nucleophilic addition reactions for difunctionalization of alkenes or alkynes. The difunctionalization could be accomplished through 1,2-addition (vicinal) and 1,n-addition (distal or remote) if H-atom or group-transfer is involved in the reaction process. A wide range of moieties, such as alkyl (R), perfluoroalkyl (Rf), aryl (Ar), hydroxy (OH), alkoxy (OR), acetatic (O2CR), halogenic (X), amino (NR2), azido (N3), cyano (CN), as well as sulfur- and phosphorous-containing groups can be incorporated through the difunctionalization reactions. Radicals generated from peroxides or single electron transfer (SET) agents, under photoredox or electrochemical reactions are employed for the reactions.

scholarly journals Remarkable Alkene-to-Alkene and Alkene-to-Alkyne Transfer Reactions of Selenium Dibromide and PhSeBr. Stereoselective Addition of Selenium Dihalides to Cycloalkenes

Molecules ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 194
Author(s):  
Vladimir A. Potapov ◽  
Maxim V. Musalov ◽  
Evgeny O. Kurkutov ◽  
Vladimir A. Yakimov ◽  
Alfiya G. Khabibulina ◽  
...  
Keyword(s):  
Room Temperature ◽  
Stereoselective Synthesis ◽  
Reaction Pathway ◽  
Transfer Reactions ◽  
Addition Reactions ◽  
Group Transfer ◽  
Unsaturated Compounds ◽  
Stereoselective Addition ◽  
Selenium Dibromide ◽  
Original Goal

The original goal of this research was to study stereochemistry of selenium dihalides addition to cycloalkenes and properties of obtained products. Remarkable alkene-to-alkene and alkene-to-alkyne transfer reactions of selenium dibromide and PhSeBr were discovered during this research. The adducts of selenium dibromide with alkenes or cycloalkenes easily exchange SeBr2 with other unsaturated compounds, including acetylenes, at room temperature, in acetonitrile. Similar alkene-to-alkene and alkene-to-alkyne transfer reactions of the PhSeBr adducts with alkenes or cycloalkenes take place. The supposed reaction pathway includes the selenium group transfer from seleniranium species to alkenes or alkynes. It was found that the efficient SeBr2 and PhSeBr transfer reagents are Se(CH2CH2Br)2 and PhSeCH2CH2Br, which liberate ethylene, leading to a shift in equilibrium. The regioselective and stereoselective synthesis of bis(E-2-bromovinyl) selenides and unsymmetrical E-2-bromovinyl selenides was developed based on the SeBr2 and PhSeBr transfer reactions which proceeded with higher selectivity compared to analogous addition reactions of SeBr2 and PhSeBr to alkynes under the same conditions.

Radical Addition Reaction of Brominated Active Methylene Compounds to Enol Ethers Using 2,2‘-Azobis(2,4- dimethyl-4-methoxyvaleronitrile) (V-70) as an Initiator

1999 ◽  
Vol 64 (2) ◽  
pp. 675-678 ◽  
Author(s):  
Yasuyuki Kita ◽  
Atsunori Sano ◽  
Takahiro Yamaguchi ◽  
Masahisa Oka ◽  
Kentoku Gotanda ◽  
...  
Keyword(s):  
Addition Reaction ◽  
Radical Addition ◽  
Enol Ethers ◽  
Active Methylene Compounds ◽  
Active Methylene
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