The FTIR spectrum of the sample is shown in Figure 11 ... The Ugi reaction requires the use of four components containing the functional groups aldehyde, amine, carboxylic acid and isocyanide. In this ...

Solve analytical challenges with ease using the Thermo Scientific™ Nicolet™ iS50 FT-IR Spectrometer, featuring purpose-built accessories and integrated software — making it an all-in-one ...

The synthetic route was shown in Scheme 2. 2.2. Characterization Method The structures of the intermediates (IP-2 and IP-3) were determined by means of FT-IR while the structures of intermediates ...

Showed promising results of antioxidant activity in in vitro assays. The polysaccharide is non-toxic, stimulates cell activation and cytokine production in in vitro. Promising therapeutic agent. Thus, ...

各国政府提供了一系列富有创意的激励措施以鼓励生育，但生育率仍在持续下降。 白宫人工智能负责人大卫•萨克斯提出了涉嫌知识产权盗窃的可能性。 凯悦、洲际酒店集团和丽笙集团正在中国扩张，但已将重点转向更具成本意识的旅客。 人工智能对生产力的 ...

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Otto Diels-Institut für Organische Chemie, Christian-Albrechts-Universität zu Kiel, Otto-Hahn-Platz 4, 24118 Kiel, Germany ...