57981-16-5Relevant articles and documents
Regio- And diastereoselective Pd-catalyzed aminochlorocyclization of allylic carbamates: scope, derivatization, and mechanism
Ariga, Elaine Miho,Carita Correra, Thiago,Matsushima, Jullyane Emi,McIndoe, J. Scott,Moreira Ribeiro, Francisco Wanderson,Omari, Isaac,Papa Spadafora, Bruna,Rodrigues, Alessandro,Soares, Priscila Machado Arruda,Vinhato, Elisangela,de Oliveira-Silva, Diogo
supporting information, p. 5595 - 5606 (2021/07/02)
The regio- and diastereoselective synthesis of oxazolidinonesviaa Pd-catalyzed vicinal C-N/C-Cl bond-forming reaction from internal alkenes of allylic carbamates is reported. The oxazolidinones are obtained in yields of 44 to 95% with high to excellent diastereoselectivities (from 6?:?1 to >20?:?1 dr) from readily available precursors. This process is scalable, and the products are suitable for the synthesis of useful amino alcohols. A detailed theoretical and experimental mechanistic study was carried out to describe that the reaction proceeds through ananti-aminopalladation of the alkene followed by an oxidative C-Pd(ii) cleavage with retention of the carbon stereochemistry to yield the major diastereomer. The role of Cu(ii) in a C-Cl bond-forming mechanism step has also been proposed.
A New Class of Redox Isomerization of N-Alkylpropargylamines into N-Alkylideneallylamines Catalyzed by a ReBr(CO)5/Amine N-oxide System
Fukumoto, Yoshiya,Okazaki, Natsuki,Chatani, Naoto
, p. 1760 - 1765 (2019/03/11)
Redox isomerization reaction wherein N-alkylpropargylamines are converted into N-alkylideneallylamines in the presence of rhenium(I) complexes as catalysts is described. Among the additives tested, certain pyridine N-oxides and tertiary amine N-oxides wer
ALLYLIC AMINATION OF ALKENES BY TOSYLIMINOIODOBENZENE : MANGANESE PORPHYRINS AS SUITABLE CATALYSTS
Mahy, J. P.,Bedi, G.,Battioni, P.,Mansuy, D.
, p. 1927 - 1930 (2007/10/02)
Manganese-porphyrins and particularly Mn(TPP)(ClO4) were found to be much better catalysts than iron-porphyrins for allylic N-tosylamination of alkenes by tosyliminoiodobenzene.With the former catalyst, cyclohexene was selectively transformed into 3-tosyl