A Convenient Crystalline Acyl Silane for the Colorimetric Titration of Diisobutylaluminum Hydride (DIBAL)
Year: 2026
Type: preprint
Abstract: Due to the intense color associated with acyl silanes and their fast reaction with DIBAL to generate colorless alcohols, these properties were utilized to develop a colorimetric titration of DIBAL. A convenient crystalline acyl silane was identified that can be prepared on gram scale without the need for chromatographic purification by direct crystallization of the reaction products. Use of this material for the colorimetric titration of DIBAL and n-BuLi was possible. A variety of other 2 hydride and organometallic reagents were also tested and showed unsatisfactory endpoints. This work was performed by an American Chemical Society Project SEED student during their summer fellowship under the direction of a senior graduate student. The work disclosed could be suitable for application to an advanced undergraduate level laboratory related to the titration of reactive hydride reagents including the significance of atom effects on the physical and chemical properties or organic compounds.
Source: ChemRxiv
Institution: Virginia Commonwealth University
Language: English
Subfield: Education
Field: Social Sciences
Domain: Social Sciences
Open Access status: green
OpenAlex ID: W7214087393