165876-55-1Relevant academic research and scientific papers
Total synthesis of (-)-goniotrionin
Dias, Luiz C.,Ferreira, Marco A. B.
experimental part, p. 4046 - 4062 (2012/06/29)
A stereoselective total synthesis of the reported structure of goniotrionin (4) has been accomplished. The key steps involved the opening of a chiral epoxide, a highly diastereoselective Mukaiyama aerobic oxidative cyclization, a selective 1,2-syn Mukaiyama aldol reaction, and a Noyori reduction.
Stereoselective synthesis of the 3-hydroxytetrahydropyran part of mucocin, an antitumor agent, based on rearrangement-ring expansion reaction of a tetrahydrofuran derivative
Takahashi, Shunya,Fujisawa, Kenji,Sakairi, Nobuo,Nakata, Tadashi
, p. 1361 - 1370 (2007/10/03)
The synthesis of the 2,6-disubstituted 2,3-trans-3- hydroxytetrahydropyran part of mucocin, a potent antitumor agent, was accomplished based on the zinc acetate-induced ring expansion reaction of a tetrahydrofuran having a choloromethanesulfonate on the C
Stereoselective Additions of Chiral, Functionalized Organozinc Reagents to Achiral and Chiral Aldehydes: a Matched-Mismatched Case in Organozinc Chemistry
Koert, Ulrich,Wagner, Holger,Pidun, Ulrich
, p. 1447 - 1458 (2007/10/02)
The additions of the enantiomerically pure organozinc reagents 17 and 33 to the THF-aldehyde 1 in the presence of the monodentate Lewis acid boron trifluoride-ether give the nonchelation-controlled addition products 7 and 36, respectively (stereoselectivity 95:5, 86:14).These results provide a route to oligo(tetrahydrofuran)s with the relative stereochemistry trans-syn-cis.A stereodirecting effect of the chiral center in the organozinc reagent 17 is found, leading to simple diastereoselectivies in the reaction with achiral aldehydes and to a matched-mismatched case in the reaction with the chiral aldehyde 1. - Key Words: Addition, stereoselective, nonchelation-controlled / Reagent, organozinc / Stereodifferentiation, double / Oligo(tetrahydrofuran)
