Weak Bronsted Acid-Thiourea Co-catalysis: Enantioselective, Catalytic Protio-Pictet-Spengler Reactions

Klausen RS; Jacobsen EN

首页> 外文期刊>Organic letters >Weak Bronsted Acid-Thiourea Co-catalysis: Enantioselective, Catalytic Protio-Pictet-Spengler Reactions

【24h】

Weak Bronsted Acid-Thiourea Co-catalysis: Enantioselective, Catalytic Protio-Pictet-Spengler Reactions

机译：弱布朗斯台德酸-硫脲共催化：对映选择性，催化的Protio-Pictet-Spengler反应

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The development of one-pot imine formation and asymmetric Pictet-Spengler reactions cocatalyzed by a chiral thiourea and benzoic acid is described. Optically active tetrahydro-beta-carbolines, ubiquitous structural motifs in biologically active natural products, are obtained in high ee directly from tryptamine and aldehyde precursors.

机译：描述了由手性硫脲和苯甲酸共催化的一锅亚胺形成和不对称Pictet-Spengler反应的发展。光学活性的四氢-β-咔啉是生物活性天然产物中普遍存在的结构基序，可直接从色胺和醛类前体中以高能得到。

著录项

来源
《Organic letters》 |2009年第4期|共4页
作者
Klausen RS; Jacobsen EN;
展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词
ASYMMETRIC CATALYSIS; BOND DONORS; ADDITIONS; IONS;

机译：不对称催化;键捐赠者;添加;离子;

相似文献

外文文献
中文文献
专利

1. Weak Bronsted Acid-Thiourea Co-catalysis: Enantioselective, Catalytic Protio-Pictet-Spengler Reactions [J] . Klausen RS, Jacobsen EN Organic letters . 2009,第4期

机译：弱布朗斯台德酸-硫脲共催化：对映选择性，催化的Protio-Pictet-Spengler反应
2. Catalytic Enantioselective Povarov Reactions of Ferrocenecarbaldehyde-Derived Imines - Bronsted Acid Catalysis at Parts-Per-Million Level Loading [J] . Stevanovic Dragana, Bertuzzi Giulio, Mazzanti Andrea, Advanced synthesis & catalysis . 2018,第5期

机译：催化映选择性POVAROV反应亚甲醛衍生的亚胺 - 富正酸催化在零属百万水平负荷下
3. Chiral Bronsted Acids in the Catalytic Asymmetric Nazarov Cyclization - The First Enantioselective Organocatalytic Electrocyclic Reaction [J] . Magnus Rueping, Winai Ieawsuwan, Andrey P. Antonchick, Angewandte Chemie . 2007,第12期

机译：催化不对称纳扎罗夫环化中的手性布朗斯台德酸-第一个对映选择性有机催化电环反应
4. New Dimension of Bronsted Base-catalyzed Addition Reactions of Weakly Acidic Carbon Pronucleophiles [C] . Yasuhiro YAMASHITA, Shu KOBAYASHI 日本化学会春季年会講演予稿集 . 2018

机译：弱酸性碳前核官核酸碳碱催化添加反应的新尺寸
5. I. Enantioselective total synthesis of quinine and quinidine. II. Thiourea-catalyzed enantioselective C-C bond-forming reactions. a. Catalytic asymmetric N-acyliminium ion cyclizations. b. Catalytic asymmetric aza-Baylis-Hillman reactions [D] . Raheem, Izzat Tiedje 2008

机译：I.奎宁和奎尼丁的对映选择性全合成。二。硫脲催化的对映选择性C-C键形成反应。一个。催化不对称N-酰亚胺离子环化。 b。催化不对称氮杂-Baylis-Hillman反应
6. Weak Brønsted Acid–Thiourea Co-Catalysis: Enantioselective Catalytic Protio-Pictet–Spengler Reactions [O] . Rebekka S. Klausen, Eric N. Jacobsen -1

机译：弱布朗斯台德酸-硫脲共催化：对映选择性催化质-皮克特-斯宾格勒反应
7. Weak Brønsted Acid−Thiourea Co-catalysis: Enantioselective, Catalytic Protio-Pictet−Spengler Reactions [O] . Rebekka S. Klausen, Eric N. Jacobsen 2009

机译：弱Brønsted酸 - 硫脲共催化：对映选择性，催化植物 - 象形型 - Spengler反应
8. Gas-Phase Reactions of Weak Bronsted Bases I-, PO3-, HSO4-, FSO3-, and CF3SO3-with Strong Bronsted Acids H2SO4, FSO3,H, and CF3SO3H. A Quantitative Intrinsic Superacidity Scale for the Sulfonic Acids XSO3H (X = HO, F, and CF3). (Reannouncement with New Av [R] . Viggiano, A. A., Henchman, M. J., Dale, F., 1992

机译：弱布朗斯台德碱I-，pO3-，HsO4-，FsO3-和CF3sO3-与强布朗斯台德酸H2sO4，FsO3，H和CF3sO3H的气相反应。磺酸XsO3H（X = HO，F和CF3）的定量内在超强度标度。（与新av。重新宣布

Weak Bronsted Acid-Thiourea Co-catalysis: Enantioselective, Catalytic Protio-Pictet-Spengler Reactions

摘要

著录项

相似文献

相关主题

期刊订阅