DirectcatalyticasymmetricMannich-typereaction of a trichloromethyl ketone as a propionate equivalent donor is described. A new lanthanum aryloxide−iPr-pybox + lithium aryloxide combined catalyst was the most effective, promoting the reaction of N-2-thiophenesulfonyl imines with the trichloromethyl ketone. syn-Mannich adducts were obtained from various aryl, heteroaryl, alkenyl, and alkyl imines
Enantioselective nucleophilic addition of Grignard reagents to N-(2-pyridylsulfonyl)imines in the presence of bis(oxazoline) afforded products with good enantioselectivity. Dynamically induced chirality on the sulfur by coordination of a chiral Lewis acid to a pyridyl nitrogen and one of the sulfonyl oxygens fixes the conformation of the complex and induces enantioselectivity. Since the 2-pyridylsulfonyl
A neworganocatalyticstrategy for the synthesis of enantioenriched aza‐Baylis–Hillman type products via a frustrated vinylogous reaction is presented. This process proceeds under mild conditions with good yields, completed Z/E selectivity and excellent enantioselectivities. Moreover, easy derivatizations of the final products led to important building blocks of organic synthesis such as 1,3‐aminoalcohols
[EN] POLYMER SUPPORTED PHOSPHORIC ACIDS AND USE THEREOF AS CATALYSTS IN THE PREPARATION OF 3-INDOLYLMETHANAMINES<br/>[FR] ACIDES PHOSPHORIQUES SUPPORTÉS SUR POLYMÈRES ET LEUR UTILISATION EN TANT QUE CATALYSEURS DANS LA PRÉPARATION DE 3-INDOLYLMÉTHANAMINES
申请人:FUNDACIÓ INST CATAL D INVESTIGACIÓ QUÍMICA ICIQ
公开号:WO2015086793A1
公开(公告)日:2015-06-18
The present invention relates to the field of catalysis, more particularly to the field of organocatalysis and to polymer supported chiral phosphoric acid catalysts. It also relates to the use of these compounds in the preparation of chiral 3-indolylmethanamines Formula (I).
The present invention relates to the field of catalysis, more particularly to the field of organocatalysis and to polymer supported chiral phosphoric acid catalysts. It also relates to the use of these compounds in the preparation of chiral 3-indolylmethanamines.