Gerald Feder

University of Göttingen

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Uwe Beifuß

University of Hohenheim

Ursula Schniske

University of Göttingen

Pavel A. Gunchenko

National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”

Alexander Wittkopp

University of Göttingen

Peter R. Schreiner

University of Giessen

Oliver Lauenstein

University of Göttingen

Igor V. Kolomitsin

University of Göttingen

Andrey A. Fokin

National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”

T. Bes

University of Göttingen

Ekaterina D. Butova

National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”

Cooperative Institutions

University of Göttingen

National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”

University of Giessen

University of Georgia

Institute of Organic Chemistry

National Polytechnic School

Chevron (United States)

Giessen School of Theology

Lawrence Livermore National Laboratory

SLAC National Accelerator Laboratory

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

The First Stereoselective Bifunctionalization of 4-Quinolones with Organometallics and N-Halosuccinimides to 2,3-trans Disubstituted Tetrahydroquinolones: Expected and Unexpected Results

Synlett (1998)

Uwe Beifuß Gerald Feder T. Bes Isabel Usón

The C-2-addition of organometallic reagents to 4-quinolones followed by reaction with N-halosuccinimides provides a short and diastereoselective entry for the preparation of 2,3-trans disubstituted tetrahydroquinolones.

10.1055/s-1998-1724

Cite

Citations (18)

ChemInform Abstract: The First Stereoselective Bifunctionalization of 4‐Quinolones with Organometallics and N‐Halosuccinimides to 2,3‐trans Disubstituted Tetrahydroquinolones: Expected and Unexpected Results.

ChemInform (1998)

Uwe Beifuß Gerald Feder T. Bes Isabel Usón

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

10.1002/chin.199840146

Cite

Citations (0)

ChemInform Abstract: Selective Radical Reactions in Multiphase Systems: Phase‐Transfer Halogenations of Alkanes.

ChemInform (2002)

Peter R. Schreiner Oliver Lauenstein Ekaterina D. Butova Pavel A. Gunchenko Igor V. Kolomitsin

10.1002/chin.200216055

Cite

Citations (0)

Selective Radical Reactions in Multiphase Systems: Phase-Transfer Halogenations of Alkanes

Chemistry - A European Journal (2001)

Peter R. Schreiner Oliver Lauenstein Ekaterina D. Butova Pavel A. Gunchenko Igor V. Kolomitsin

The present paper shows that selective radical reactions can be initiated and carried out in multiphase systems. This concept is applied to the selective functionalization of unactivated aliphatic hydrocarbons, which may be linear, branched, and (poly)cyclic, strained as well as unstrained. The phase-transfer system avoids overfunctionalization of the products and simplifies the workup; the selectivities are excellent and the yields are good. This is the only method for direct preparative iodination of alkanes applicable to large scale as well. We demonstrate that the reaction systems are indeed phase-transfer catalyzed through a systematic study of variations of the reactants, solvents, catalysts, and by measuring as well as computing the H/D kinetic isotope effects for the rate-limiting C-H abstraction step by *CHal3 radicals which are held responsible for the observed radical reactions. In the case of *CBr3, this key intermediate could also be trapped under otherwise very similar reaction conditions. To stimulate further work, the tolerance of some functional groups was tested as well.

Kinetic isotope effect

Alkane

Limiting

10.1002/1521-3765(20011203)7:23<4996::aid-chem4996>3.0.co;2-p

Cite

Citations (54)

Efficient allylation of 4-silyloxyquinolinium triflates and other positively charged heteroaromatic systems

Tetrahedron (2001)

Uwe Beifuß Ursula Schniske Gerald Feder

10.1016/s0040-4020(00)01066-8

Cite

Citations (20)