A one-pot synthesis of 2-alkoxybenzoxazole (I) from benzoxazoline-2-thione (II) was achieved. Treatment of benzoxazoline-2-thione with methyl iodide followed by an alcohol at room temperature in the presence of sodium hydride gave I. The reaction involves the intermediate of 2-(methylthio) benzoxazole (IIIa), followed by substitution of the methylthio group by an alkoxide anion. The general applicability of this method is discussed.
A Cs2CO3-promoted C−Ocouplingprotocol was developed to enable the facile synthesis of (hetero)arylethersunder transition-metal-free and solvent-free conditions. Moreover, this protocol was scalable to gram scales and applicable to the synthesis of bioactive molecules, which reflected its potential application prospect. Finally, DFT calculations and a few experiments were carried out to propose
开发了一种 Cs 2 CO 3促进的 C-O 偶联方案,以实现在无过渡金属和无溶剂条件下轻松合成(杂)芳基醚。此外,该协议可扩展到克级,适用于生物活性分子的合成,体现了其潜在的应用前景。最后,进行了 DFT 计算和一些实验,以提出可能的途径。
AN EFFICIENT METHOD FOR THE SYNTHESIS OF MIXED DIESTERS OF PHOSPHORIC ACID
作者:Teruaki Mukaiyama、Naoya Morito、Yutaka Watanabe
DOI:10.1246/cl.1979.895
日期:1979.8.5
hydrogen phosphate, and subsequent removal of one of two p-nitrophenoxy groups in the resulting alkyl bis(p-nitrophenyl) phosphate gave alkyl p-nitrophenyl phosphates. These were then converted to mixed dialkyl hydrogen phosphates in good overall yields by repetition of the above two-step procedure. The stepwise removal of two p-nitrophenoxy groups was successfully accomplished by the use of tetrabutylammonium
Inhibiting germination of clostridium perfringens spores to reduce necrotic enteritis
申请人:The Board of Regents of the Nevada System of Higher Education on Behalf of the University of Nevada
公开号:US10945996B2
公开(公告)日:2021-03-16
Provided herein are materials and methods useful for reducing, preventing, and/or inhibiting germination of C. perfringens spores, including methods for inhibiting C. perfringens germination to reduce necrotizing enteritis (NE, also referred to as necrotic enteritis) in animals. 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 invention.