B 3 NO 2六元杂环(1,3-二氧杂-5-氮杂-2,4,6-三硼烷= DATB),由三种不同的非碳2期元素组成,最近被证明是羧酸脱水缩合的强大催化剂酸和胺。然而,繁琐的DATB合成大大降低了其作为催化剂的用途,因此,实际上仍未探索环系统的固有化学性质。在此公开了一种通用且简便的合成策略,该策略利用含嘧啶的支架可靠地安装硼原子,从而以模块化的方式由廉价材料制成了一系列Pym-DATB。可溶性Pym‐DATB衍生物的鉴定可用于研究B 3 NO 2的动力学性质环系统,根据介质的不同,显示出不同的开环和开环行为。易于获取的Pym‐DATB证明了其作为脱水酰胺化的有效催化剂的实用性,具有广泛的底物范围和官能团耐受性,为试剂驱动的酰胺化提供了一种通用且实用的催化替代方法。
Radical α,β-Dehydrogenation of Saturated Amides via α-Oxidation with TEMPO under Transition Metal-Free Conditions
作者:Mei-Mei Wang、Guo-Hui Sui、Xian-Chao Cui、Hui Wang、Jian-Ping Qu、Yan-Biao Kang
DOI:10.1021/acs.joc.9b00872
日期:2019.6.21
A transitionmetal-free radical process for the selective α,β-dehydrogenation of saturated amidesunder mild conditions is developed. Utilizing radical activation strategy, the challenging issue associated with the low α-acidity of amides is resolved. For the first time, α,β-unsaturated Weinreb amides and acrylamides could be efficiently prepared directly from corresponding saturated amides. Mechanistic
[EN] RETINOIC ACID RECEPTOR-RELATED ORPHAN RECEPTOR MODULATORS AND USES THEREOF<br/>[FR] MODULATEURS DU RÉCEPTEUR ORPHELIN LIÉ AU RÉCEPTEUR DE L'ACIDE RÉTINOÏQUE ET LEURS UTILISATIONS
申请人:INNOV17 LLC
公开号:WO2015138276A2
公开(公告)日:2015-09-17
Provided herein are compounds of the formula (I): as well as pharmaceutically acceptable salts thereof, wherein the substituents are as those disclosed in the specification. These compounds, and the pharmaceutical compositions containing them, are useful for the treatment of Retinoic Acid Receptor-Related Orphan Receptor regulated diseases and disorders.
Reaction of methylcerium reagent with tertiary amides: Synthesis of saturated and unsaturated ketones from tertiary amides
作者:Michio Kurosu、Yoshito Kishi
DOI:10.1016/s0040-4039(98)00959-9
日期:1998.7
The reaction of CeCl3•MeLi to tertiary amides has been studied. The reagent prepared from cerium(III) chloride and methyllithium at 0 °C adds cleanly to morpholine amides to give the corresponding methyl ketones. Even in the presence of a large excess of the reagent, no tertiary alcohol formation is observed, indicating that the tetrahedral intermediates are stable under the reaction conditions employed
All Non‐Carbon B
<sub>3</sub>
NO
<sub>2</sub>
Exotic Heterocycles: Synthesis, Dynamics, and Catalysis
作者:Christopher R. Opie、Hidetoshi Noda、Masakatsu Shibasaki、Naoya Kumagai
DOI:10.1002/chem.201900715
日期:2019.3.27
The B3NO2 six‐membered heterocycle (1,3‐dioxa‐5‐aza‐2,4,6‐triborinane=DATB), comprising three different non‐carbon period 2 elements, has been recently demonstrated to be a powerful catalyst for dehydrative condensation of carboxylic acids and amines. The tedious synthesis of DATB, however, has significantly diminished its utility as a catalyst, and thus the inherent chemical properties of the ring
B 3 NO 2六元杂环(1,3-二氧杂-5-氮杂-2,4,6-三硼烷= DATB),由三种不同的非碳2期元素组成,最近被证明是羧酸脱水缩合的强大催化剂酸和胺。然而,繁琐的DATB合成大大降低了其作为催化剂的用途,因此,实际上仍未探索环系统的固有化学性质。在此公开了一种通用且简便的合成策略,该策略利用含嘧啶的支架可靠地安装硼原子,从而以模块化的方式由廉价材料制成了一系列Pym-DATB。可溶性Pym‐DATB衍生物的鉴定可用于研究B 3 NO 2的动力学性质环系统,根据介质的不同,显示出不同的开环和开环行为。易于获取的Pym‐DATB证明了其作为脱水酰胺化的有效催化剂的实用性,具有广泛的底物范围和官能团耐受性,为试剂驱动的酰胺化提供了一种通用且实用的催化替代方法。