Reaction Pathways of Aldehyde - and Ketone-Acid Site Complexes in Zeolites

沸石中醛和酮酸位点配合物的反应路径

• 批准号: 9520920
• 负责人: Andrew Biaglow
• 金额: $ 4.11万
• 依托单位: United States Military Academy
• 依托单位国家: 美国
• 项目类别: Interagency Agreement
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-10-01 至 1998-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9520920&HistoricalAwards=false
• 关键词: Reaction; Pathways; Aldehyde; Ketone; Acid

ABSTRACT CTS-9520920 The objective of this effort is to synthesize site-localized organic molecules such as conjugated aldehydes and ketones, imines, acetals, cyanohydrins, and chloroketones, at the acid sites in zeolites. Aldehydes and ketones are adsorbed and exposed to reactive vapors. Surface species are analyzed with carbon-13 magic-angle nuclear magnetic resonance and infrared spectroscopy. Zeolite catalysts are synthesized and characterized with silicon-29 and aluminum-27 nuclear magnetic resonance, X-ray diffraction, and sorption uptake measurements. The compounds formed in this study are typical chemical intermediates that are presently produced using liquid acid catalysts. Environmental considerations are forcing producers to shift to solid acid catalysts, such as those used in this study. ***

摘要CTS-9520920这项工作的目的是在沸石分子筛的酸性位置合成共轭醛和酮、亚胺、缩醛、氰醇和氯酮等定位有机分子。醛和酮被吸附并暴露在活性蒸汽中。用~(13)C魔角核磁共振和红外光谱分析了表面物种。合成了沸石催化剂，并用硅-29和铝-27的核磁共振、X-射线衍射仪和吸附吸附测试对其进行了表征。本研究中形成的化合物是目前使用液态酸催化剂生产的典型的化学中间体。环境考虑正迫使生产商转向固体酸催化剂，如本研究中使用的催化剂。***