在过去的几年里,我们的团队开发了分子内不对称氢胺化(HA)反应,基本上可以得到对映体纯的产品。接下来的问题是,除了天然/药物相关产品的合成之外,我们是否可以以有用的方式应用该反应。在本文中,我们结合了一些精选的 HA 产品来生产新型手性相转移催化剂。这些物质是由新的螺环 HA 产品通过一两个合成步骤合成的,并应用于经典的取代反应,显示出可忽略不计的对映选择性。在第二个应用中,我们介绍了一种新型亚磷酰胺配体,该配体是通过将 BINOL(1,1'-双-2-萘酚)和光学纯 HA 产品与三氯化磷结合而获得的。
在过去的几年里,我们的团队开发了分子内不对称氢胺化(HA)反应,基本上可以得到对映体纯的产品。接下来的问题是,除了天然/药物相关产品的合成之外,我们是否可以以有用的方式应用该反应。在本文中,我们结合了一些精选的 HA 产品来生产新型手性相转移催化剂。这些物质是由新的螺环 HA 产品通过一两个合成步骤合成的,并应用于经典的取代反应,显示出可忽略不计的对映选择性。在第二个应用中,我们介绍了一种新型亚磷酰胺配体,该配体是通过将 BINOL(1,1'-双-2-萘酚)和光学纯 HA 产品与三氯化磷结合而获得的。
Highly Stereoselective Metal-Free Oxyaminations Using Chiral Hypervalent Iodine Reagents
作者:Umar Farid、Thomas Wirth
DOI:10.1002/anie.201107703
日期:2012.4.2
The ring and I: Hypervalentiodine compounds avoid the issues of toxicity or complicated ligands of many transition‐metal‐based systems. A highly enantioselective oxyamination of alkenes with N‐sulfonyl ureas employing chiral, lactic acid‐based hypervalentiodinereagents gives a facile synthesis of enantiomerically pure 2‐arylproline derivatives (see scheme) for the first time.
Verfahren zur Herstellung von 1,3-Diamino-2,2-dialkylpropanen
申请人:BASF Aktiengesellschaft
公开号:EP0107124A1
公开(公告)日:1984-05-02
Verfahren zur Herstellung von 1,3-Diamino-2,2-dial- kylpropanen, deren Alkylsubstituenten jeweils 1 bis 4 Kohlenstoffatome aufweisen, durch Umsetzung der entsprechenden 2,2-Dialkylpropandiole-1,3 mit Ammoniak in Gegenwart von Wasserstoff bei erhöhtem Druck, wobei man die Reaktion in Lösung und in Gegenwart von kobalthaltigen Katalysatoren durchführt.
Palazzo; Cecinati, Farmaco, Edizione Scientifica, 1956, vol. 11, p. 918,922
作者:Palazzo、Cecinati
DOI:——
日期:——
Exploring the Nickel-Catalyzed Oxidation of Alkenes: A Diamination by Sulfamide Transfer
作者:Kilian Muñiz、Jan Streuff、Claas H. Hövelmann、Ana Núñez
DOI:10.1002/anie.200702160
日期:2007.9.17
SUBSTRATE WITH WATER REPELLENT OIL REPELLENT LAYER, VAPOR DEPOSITION MATERIAL, AND METHOD FOR PRODUCING SUBSTRATE WITH WATER REPELLENT OIL REPELLENT LAYER
申请人:AGC Inc.
公开号:US20210230446A1
公开(公告)日:2021-07-29
To provide a water/oil repellent layer-provided substrate having a water/oil repellent layer excellent in abrasion resistance, a deposition material and a method for producing a water/oil repellent layer-provided substrate.
The water/oil repellent layer-provided substrate of the present invention is a water/oil repellent layer-provided substrate comprising a substrate, an undercoat layer and a water/oil repellent layer in this order,
wherein the water/oil repellent layer comprises a condensate of a fluorinated compound having a reactive silyl group,
the undercoat layer contains an oxide containing silicon and at least one element of boron and phosphorus, and
the ratio of the total molar concentration of boron and phosphorus in the undercoat layer to the molar concentration of silicon in the undercoat layer is from 0.003 to 9.