Zobrazeno 1 - 10
of 188
pro vyhledávání: '"Jose M. Concellon"'
Autor:
Santiago García-Granda, and M. Rosario Díaz, Elena G. Blanco, Jose M. Concellon, Humberto Rodriguez‐Solla
Publikováno v:
Advanced Synthesis & Catalysis. 353:49-52
A catalytic chromium-mediated novel synthesis of iodocyclopropanecarboxamides is reported. This reaction can be carried out on aromatic (E)- or (Z)-α,β-unsaturated amides in which the C=C double bond is di- or trisubstituted. This process takes pla
Publikováno v:
The Journal of Organic Chemistry. 75:2407-2410
A novel, totally regioselective transformation of aromatic N-4-methoxyphenylaziridine 2-carboxamides into 2-aminoamides promoted by active manganese (Mn*) is reported. alpha-Amino ketones can be readily obtained by reaction of morpholine-derived 2-am
Autor:
Jose M. Concellon, M. Rosario Diaz, Vicente del Amo, Carmen Simal, Santiago García-Granda, Humberto Rodriguez‐Solla
Publikováno v:
Advanced Synthesis & Catalysis. 351:2991-3000
The addition reaction of samarium enolates and 2-haloenolates derived from esters and amides to imines takes place in an efficient manner. A novel protocol to perform the addition reaction of samarium enolates derived from esters or amides to chiral
Publikováno v:
Advanced Synthesis & Catalysis. 351:2178-2184
A simple and general methodology directed towards the synthesis 3-aryl-2-hydroxy amides, or esters with total regioselectivity from the easily available 2,3-epoxy amides or esters, promoted by active manganese is described. Utilizing enantiopure epox
Autor:
Humberto Rodriguez‐Solla, María A. Villa-García, Elena G. Blanco, Noemi Alvaredo, M. Rosario Diaz, Santiago García-Granda, Jose M. Concellon
Publikováno v:
Advanced Synthesis & Catalysis. 351:2185-2198
A convenient highly stereoselective synthesis of chloro- and bromocyclopropanamides from di- tri- or tetrasubstituted (E)- or (Z)-α,β-unsaturated amides with total or high stereoselectivity promoted by chromium dichloride or dibromide is described.
Publikováno v:
Synthesis. 2009:2634-2645
A study of the advantages of using manganese, an inexpensive and nontoxic metal, to perform stereoselective β-elimination reactions and to promote sequential olefination reactions of aldehydes to obtain α,β-unsaturated esters and amides is present
Publikováno v:
Advanced Synthesis & Catalysis. 351:1238-1242
An efficient reaction of tosylimines with a range of samarium enolates (derived from esters, and amides) is reported. The reaction with the α-dibenzylamino-N-tert-butanesulfinimine derived from chiral phenylalaninal afforded the corresponding enanti
Publikováno v:
The Journal of Organic Chemistry. 74:2452-2459
We report a novel, simple, and efficient synthesis of aziridines and 1-chloroalkan-2-amines by the reaction of imines derived from various aldehydes and p-toluenesulfonamide or benzenesulfonamide with iodo- or chloromethyllithium, respectively. Both
Publikováno v:
Chemistry - A European Journal. 14:10184-10191
While the organometallic compounds derived from many metals have found a broad application in organic synthesis, the use of organomanganese compounds has only recently been developed due to the passivity exhibited by commercial Mn in the direct metal
Publikováno v:
Organic Letters. 10:4549-4552
A method to obtain (Z)-beta,gamma-unsaturated nitriles in high or good yields and with moderate or high stereoselectivity is described. The products were achieved through the photoinduced metalation of 3-acetoxy-4-chloronitriles with SmI2. The starti