Kishner's Reduction of 2-Furylhydrazone Gives 2-Methylene-2,3-dihydrofuran, a Highly Reactive Ene in the Ene Reaction
摘要:
The Kishner reduction of 2-furylhydrazone gives 2-methylene-2,3-dihydrofuran as the major abnormal reduction product. 2-Methylene-2,3-dihydrofuran is an excellent ene in the carbonyl-ene reaction, reacting with a variety of aldehydes. Most notable was the asymmetric carbonyl-ene reaction of 2-methylene-2,3-dihydrofuran and decanal using Ti(OCH(CH3)(2))(4)/(S)-BINOL to give the corresponding alcohol in 66% yield and 94% ee. The reaction of 2-methylene-2,3-dihydrofuran with 2 equiv of 1,4-benzoquinone unexpectedly gave a monoalkylated 1,4-hydroquinone/1,4-benzoquinone electron donor-acceptor complex.
Asymmetric transfer hydrogenation of heterocycle-containing acetophenone derivatives using N-functionalised [(benzene)Ru(II)(TsDPEN)] complexes
作者:Jonathan Barrios-Rivera、Yingjian Xu、Guy J. Clarkson、Martin Wills
DOI:10.1016/j.tet.2021.132562
日期:2022.1
The application of enantiomerically-pure ruthenium(II) catalysts containing N - functionalised TsDPEN ligand to the asymmetric transferhydrogenation of 15 examples of α-heterocyclic acetophenone derivatives is reported. Products of up to 99% ee were formed.
报道了含有 N-官能化 TsDPEN 配体的对映体纯钌 (II) 催化剂在 15 个 α-杂环苯乙酮衍生物实例的不对称转移氢化中的应用。形成高达 99% ee 的产物。
INHIBITORS OF HISTONE DEACETYLASE AND PRODRUGS THEREOF
申请人:Deziel Robert
公开号:US20080146623A1
公开(公告)日:2008-06-19
The invention relates to the inhibition of histone deacetylase. The invention provides compounds, prodrugs thereof, and methods for inhibiting histone deacetylase enzymatic activity. The invention also provides compositions and methods for treating cell proliferative diseases and conditions.
Inhibitors of histone deacetylase and prodrugs thereof
申请人:MethylGene Inc.
公开号:EP2573069A2
公开(公告)日:2013-03-27
The invention relates to the inhibition of histone deacetylase. The invention provides compounds, prodrugs thereof, and methods for inhibiting histone deacetylase enzymatic activity. The invention also provides compositions and methods for treating cell proliferative diseases and conditions.
Gold catalysis: benzanellation versus alkylidenecyclopentenone synthesis
作者:A. Stephen K. Hashmi、Michael Wölfle
DOI:10.1016/j.tet.2009.08.074
日期:2009.10
A series of different furan-yn-ols were prepared by a three-step sequence. Their reaction with Gagosz's catalyst Ph3PAuNTf2 depends strongly on the substitution pattern of the Substrate and the quality of the leaving group. Benzofurans, alkylidenecyclopentenones or Meyer-Schuster type products can be obtained. Improving the leaving group quality leads to the preferred formation of benzofurans. (C) 2009 Elsevier Ltd. All rights reserved.