26348-46-9Relevant articles and documents
Iron-catalysed 1,2-acyl migration of tertiary α-azido ketones and 2-azido-1,3-dicarbonyl compounds
Yang, Tonghao,Lin, Yajun,Yang, Chaoqun,Yu, Wei
supporting information, p. 6097 - 6102 (2019/11/20)
Iron-catalysed 1,2-acyl migration of tertiary α-azido ketones and 2-azido-1,3-dicarbonyl compounds provides a simple and atom-economical approach toward enamides and isoquinolones. This paper reports two catalyst systems for these transformations which employ iron(ii) complexes [Fe(dpbz)]Br2 (dpbz = 1,2-bis(diphenylphosphino)benzene) and FeBr2/Et3N, respectively. [Fe(dpbz)]Br2 was found to be highly effective at converting 2-azido-2,3-dihydro-1H-inden-1-ones to isoquinolones. The reagent combination of FeBr2/Et3N, on the other hand, exhibited a broader catalytic scope, owing to the beneficial effect of Et3N. This latter catalyst system enables 2-azido-2-methyl-1,3-dicarbonyl compounds to be converted to the corresponding enamides under mild conditions in good yields.
Stereoselective synthesis of dehydroamino acids using malonic acid half oxyester and aromatic aldehydes
Singjunla, Yuttapong,Colombano, Silvia,Baudoux, Jér?me,Rouden, Jacques
, p. 2369 - 2375 (2016/04/26)
An efficient and direct approach was developed for the synthesis of α,β-dehydroamino acid derivatives with a broad range of substrates. Amido-substituted Malonic Acid Half Oxyesters (MAHOs) have proven to be excellent partners of various aromatic aldehyde
A new methodology for the synthesis of N-acylaminocinnamates
Rao, Ch. Chennakesava,Lalitha, Nagubandi
, p. 3 (2007/10/02)
A new synthesis of biologically active N-protected amino acids (2) and amides (4) from 4-ylidene-5(4H)-oxazolones (1) is described.
