A highly geometry-selective organocatalytic acylation of tri- and tetra-substituted 2-alkylidene-1,3-propanediols has been developed. The highly E-selective acylation of various tetrasubstituted 2-alkylidene-1,3-propanediols was achieved in 96 to >99% selectivity for the first time by a non-enzymatic protocol.
Synthesis and SAR of 1-Alkyl-2-phenylethylamine Derivatives Designed from <i>N</i>,<i>N</i>-Dipropyl-4-methoxy-3-(2-phenylethoxy)phenylethylamine To Discover σ<sub>1</sub> Ligands
The synthesis and structure-activity relationships (SAR) of 1-alkyl-2-phenylethylamine derivatives 5-8 designed from N,N-dipropyl-2-[4-methoxy-3-(2-phenylethoxy)phenyl] ethylamine hydrochloride (1, NE-100) are presented. The SAR between compound 1 and 1-alkyl-2-phenylethylamine derivatives suggested that the alkyl group on the 1-position carbon of 2-[4-methoxy-3-(2-phenylethyl)phenyl]ethylamine derivatives played the role of one of the propyl groups on the aminic nitrogen of compound 1. (-)-N-Propyl-1-butyl-2-[4-methoxy-3-(2-phenylethoxy)phenyl]ethylamine hydrochloride ((-)-6d, NE-537) and (-)-N-propyl-1-(3-methybutyl)2-[4-methoxy-3-(2-phenylethoxy)phenyl]ethylamine hydrochloride ((-)-6i, NE-535), typical compounds in this series, have potent and selective ol affinity.
Heterogeneous mediated Alkylation of Ethyl Diethylphosphonoacetate. A "One Pot" Access to α-Alkylated Acrylic Esters
作者:Bernard Kirschleger、René Queignec
DOI:10.1055/s-1986-31824
日期:——
Wittig-Horner Reaction in Heterogeneous Media; V<sup>1</sup>. An Efficient Synthesis of α-Methylenecarboxylic Esters and α-Methyleneketones under Mild Conditions
作者:Jean Villiéras、Monique Rambaud
DOI:10.1055/s-1984-30854
日期:——
VILLIERAS, J.;RAMBAUD, M., SYNTHESIS, BRD, 1984, N 5, 406-408