Results 181 to 190 of about 6,329 (228)

Photocatalytic [2,3]-Sigmatropic Rearrangement Reactions of Ethyl Diazoacetate

Synlett, 2023
AbstractWe describe a photocatalytic reaction of diazo compounds with allyl sulfides under visible-light reaction conditions. In the presence of Ru(bpy)3Cl2 as a photocatalyst, a [2,3]-sigmatropic rearrangement reaction occurs that leads to the formation of homoallylic sulfides.
Rene M. Koenigs, Aryan Shah, Karabo M. Bopape   +2 more
openaire   +1 more source

Rhodium-Catalyzed Carbene Transfer Reactions for Sigmatropic Rearrangement Reactions of Selenium Ylides

Organic Letters, 2019
The rearrangement of selenium ylides is even today almost unexplored, although it would provide access to important organoselenium compounds with broad downstream applications. In this report, the first systematic study of sigmatropic rearrangement reactions of selenium ylides using a simple rhodium catalyst with catalyst loadings as low as 0.01 mol ...
Sripati Jana, Rene M. Koenigs
openaire   +2 more sources

ChemInform Abstract: Tandem Electrocyclic‐Sigmatropic Reaction of Benzocyclobutenes.

Chemischer Informationsdienst, 1986
AbstractEine Reihe von Benzocyclobutenen werden nach A) umgelagert und ergeben die im Formelschema aufgeführten Titelverbindungen.
K. SHISHIDO, K. HIROYA, K. FUKUMOTO, T. KAMETANI   +3 more
openaire   +1 more source

2.1.4 Sigmatropic Shifts and Ene Reactions (Excluding [3,3])

2016
AbstractThis chapter features a review and discussion of the domino transformations initiated by ene reactions and sigmatropic rearrangements, particularly focusing on [2,3]-sigmatropic shifts, such as Mislow–Evans and Wittig rearrangements, and [1,n] hydrogen shifts.
A. V. Novikov, A. Zakarian
openaire   +1 more source

Selection Rules for Sigmatropic Reactions

Journal of the American Chemical Society, 1965
R. B. Woodward, Roald Hoffmann
openaire   +1 more source

Theory of Sigmatropic Reactions

1971
R.B. Woodward, R. Hoffmann
openaire   +1 more source

Sigmatropic reactions of allylic sulphur ylids

Chemical Communications (London), 1968
G. M. Blackburn, W. D. Ollis, J. D. Plackett, C. Smith, I. O. Sutherland   +4 more
openaire   +1 more source

THE STEREOCHEMISTRY OF SIGMATROPIC REACTIONS

1972
Roland E. Lehr, Alan P. Marchand
openaire   +1 more source

UNIT-III: Pericyclic reactions & sigmatropic rearrangement reactions

2021
openaire   +1 more source

Stereochemistry of [2,3]-sigmatropic reactions. Wittig rearrangement

Journal of the American Chemical Society, 1971
J. E. Baldwin, J. E. Patrick
openaire   +1 more source