101033-15-2Relevant academic research and scientific papers
Amino- and azidocarbonylation of iodoalkenes
Mikle, Gábor,Skoda-F?ldes, Rita,Kollár, László
, (2021/10/14)
Iodoalkenes, available from ketones via their hydrazones, underwent palladium-catalysed azidocarbonylation. Depending on the structure of the acyl azides, consecutive hydrolysis toward corresponding primary amides was observed. ‘Direct’ aminocarbonylation
Highly diastereo- and enantioselective reactions of enecarbamates with ethyl glyoxylate to give optically active syn and anti α-alkyl-β- hydroxy imines and ketones
Matsubara, Ryosuke,Nakamura, Yoshitaka,Kobayashi, Shu
, p. 3258 - 3260 (2007/10/03)
The remarkably selective addition of enecarbamates 2 to ethyl glyoxylate (1) in the presence of a copper-dilmine catalyst (0.1 mol%) gives the corresponding imines 3 in high yields with excellent enantioselectivities. A concerted aza-enetype reaction mech
Highly diastereo- and enantioselective reactions of enecarbamates with an aldehyde
Matsubara, Ryosuke,Vital, Paulo,Nakamura, Yoshitaka,Kiyohara, Hiroshi,Kobayashi, Shu
, p. 9769 - 9784 (2007/10/03)
Catalytic asymmetric addition reactions of enecarbamates with ethyl glyoxylate have been developed using CuClO4·4CH3CN and a diimine ligand as the catalyst. Highly diastereo- and enantioselective addition reactions of α-mono-substitu
Bis(alkylthio)carbenes as novel reagents for organic synthesis
Rigby, James H.,Laurent, Stephane,Dong, Weitong,Danca
, p. 10101 - 10111 (2007/10/03)
Bis(alkylthio)carbenes have been shown to be a useful class of reactive intermediates for applications to organic synthesis. Substituted hydroindolones, isatins and hydroquinolones can be prepared by the addition of these carbenes to vinyl isocyanates. (C) 2000 Elsevier Science Ltd.
Construction of the azepinoindole core tricycle of the Stemona alkaloids
Rigby, James H.,Laurent, Stephane,Cavezza, Alexandre,Heeg, Mary Jane
, p. 5587 - 5591 (2007/10/03)
The azepinoindole substructure common to a number of Stemona alkaloids is constructed by employing a 7-endo radical cyclization of a readily available N-alkylated hydroindolone substrate. The indolone precursors are prepared via [1 + 4] cycloaddition between a vinyl isocyanate and either dimethoxycarbene or cyclohexylisocyanide.
(1+4) Cycloaddition of Vinyl Isocyanates with Isocyanides. Construction of Functionally Elaborate Pyrrolinone Derivatives
Rigby, James H.,Qabar, Maher,Ahmed, Gulzar,Hughes, Robert C.
, p. 10219 - 10228 (2007/10/02)
Reaction of alkyl isocyanides with vinyl isocyanates affords highly functionalized pyrrolinone and hydroindolone products via a novel (1+4) cyclization process.
An Experimentally Convenient Preparation of Highly Substituted Pyridines
Rigby, James H.,Qabar, Maher
, p. 2699 - 2709 (2007/10/02)
A four step sequence is described for the conversion of α,β-unsaturated carboxylic acids into highly substituted pyridines.
Preparation of Highly Substituted 2-Pyridones by Reaction of Vinyl Isocyanates and Enamines
Rigby, James H.,Balasubramanian, N.
, p. 224 - 228 (2007/10/02)
A method for synthesis of highly substituted 2(1H)-pyridones is reported.Vinyl isocyanates, prepared from the corresponding α,β-unsaturated carboxylic acids, undergo cyclization with various enamines to furnish six-membered heterocycles.The methodology is exemplified by numerous examples.Application of this strategy is further illustrated by the synthesis of several aza steroid analogues.
