Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Leonardo J. Breña-Valle"'
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 97:691-704
The synthesis of a variety of enantiomerically pure chiral auxiliaries based on (S)-proline and bearing sterically demanding side chains at the pyrrolidine moiety, such as the secondary amines (S)-3,5 and 7 and the hydrazines (S)-6, is described on a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abc417734820ab58b8c96da070162853
https://doi.org/10.1002/bscb.19880970809
https://doi.org/10.1002/bscb.19880970809
Publikováno v:
Synthetic Communications. 31:697-706
The title compound, a potential ‘quat’ auxiliary,was prepared from (S)-glutamic acid derivatives like (S)-N-Benzyl-5-methoxymethyl-2-pyrrolidinone 1. Other routes starting from (S)-pyroglutamic acid in an attempt to bypass N-Aryl compounds like 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cb6bd69b2e3227af6cb99ee8e934d8f
https://doi.org/10.1081/scc-100103258
https://doi.org/10.1081/scc-100103258
Publikováno v:
Tetrahedron: Asymmetry. 7:1019-1026
The (S)-glutamic acid derivatives, (5S)-Methoxymethyl- and (5S)-Benzyloxymethyl-N-Benzyl-2-Pyrrolidinones, compounds 3a and 3b respectively, exhibit good to excellent diastereoselection upon alkylation with primary alkyl bromides or iodides.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::100d9c062c414e12a29ad57fd13b88a4
https://doi.org/10.1016/0957-4166(96)00106-1
https://doi.org/10.1016/0957-4166(96)00106-1
Publikováno v:
ChemInform. 27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69eecd959edb20eb3498ece5a14688a1
https://doi.org/10.1002/chin.199635113
https://doi.org/10.1002/chin.199635113
Autor:
Leonardo J. Breña-Valle, Teresa Hernández-Quiroz, Francisco Javier Pérez-Flores, Raymundo Cruz-Almanza
Publikováno v:
ChemInform. 28
A synthesis of the thiolactone moiety by thiophene ring hydroxylation was achieved. Isolation and characterization of by-product 8 suggests the direct attack of anion 5a at the carbon center of the oxidizing reagent.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91e42d24d3a71d34ccfa5e1517afae9d
https://doi.org/10.1002/chin.199718141
https://doi.org/10.1002/chin.199718141
Publikováno v:
ChemInform. 32
The title compound, a potential ‘quat’ auxiliary,was prepared from (S)-glutamic acid derivatives like (S)-N-Benzyl-5-methoxymethyl-2-pyrrolidinone 1. Other routes starting from (S)-pyroglutamic acid in an attempt to bypass N-Aryl compounds like 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81429c617ad18266e8a1a5b39d04fa96
https://doi.org/10.1002/chin.200134131
https://doi.org/10.1002/chin.200134131