[EN] METHODS AND COMPOSITIONS FOR TERPENOID SYNTHESIS<br/>[FR] PROCÉDÉS ET COMPOSITIONS POUR LA SYNTHÈSE DE TERPÉNOÏDES
申请人:UNIV FLORIDA
公开号:WO2018053322A1
公开(公告)日:2018-03-22
In one aspect, the disclosure relates to methods for preparation of terpene and terpene-like molecules. In a further aspect, the disclosure relates to the products of the disclosed methods, i.e., terpene and terpene-like molecules prepared using the disclosed methods. Intermediates for the synthesis of a wide variety of terpenoids are γ-allyl Knoevenagel adducts or quasi γ-allyl Knoevenagel adducts are disclosed. In various aspects, methods of preparing terpenoids through these intermediates are disclosed. The methods can comprise α-alkylation of an allylic electrophile followed by ring-closure metathesis to a polycyclic terpenoid structure. In a further aspect, the disclosure pertains to terpenoid frameworks, and compounds prepared via disclosed oxidation and substitution reactions on the disclosed terpenoid frameworks. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
申请人:University of Florida Research Foundation, Inc.
公开号:US20190270700A1
公开(公告)日:2019-09-05
In one aspect, the disclosure relates to methods for preparation of terpene and terpene-like molecules. In a further aspect, the disclosure relates to the products of the disclosed methods, i.e., terpene and terpene-like molecules prepared using the disclosed methods. Intermediates for the synthesis of a wide variety of terpenoids are γ-allyl Knoevenagel adducts or quasi γ-allyl Knoevenagel adducts are disclosed. In various aspects, methods of preparing terpenoids through these intermediates are disclosed. The methods can comprise a-alkylation of an allylic electrophile followed by ring-closure metathesis to a polycyclic terpenoid structure. In a further aspect, the disclosure pertains to terpenoid frameworks, and compounds prepared via disclosed oxidation and substitution reactions on the disclosed terpenoid frameworks. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
Assembly of Terpenoid Cores by a Simple, Tunable Strategy
作者:Ouidad Lahtigui、Fabien Emmetiere、Wei Zhang、Liban Jirmo、Samira Toledo-Roy、John C. Hershberger、Jocelyn M. Macho、Alexander J. Grenning
DOI:10.1002/anie.201608863
日期:2016.12.19
Oxygenated, polycyclic terpenoid natural products have important biological activities. Although total synthesis of such terpenes is widely studied, synthetic strategies that allow for controlled placement of oxygen atoms and other functionality remains a challenge. Herein, we present a simple, scalable, and tunable synthetic strategy to assemble terpenoid‐like polycycloalkanes from cycloalkanones
Stereospecific Synthesis of (+)- and (−)-Cyclooctenone Derivatives Using a Ring Expansion Reaction with Me<sub>3</sub>SiSnBu<sub>3</sub> and CsF
作者:Alice Emi Imai、Yoshihiro Sato、Mayumi Nishida、Miwako Mori
DOI:10.1021/ja983168h
日期:1999.2.1
Novel synthesis of an eight-membered compound by the ringexpansion reaction of a two-carbon unit was developed using the stannyl anion generated from Me3SiSnBu3 and CsF in DMF. cis- and trans-cyclooctenone derivatives were synthesized from cyclohexanone derivatives having vinyl iodide in a tether by treatment with Me3SiSnBu3 and CsF in DMF in a stereospecific manner. The trans-cyclooctenone derivative