Large-Scale and Facile Preparation of Pure Ammonia Borane through Displacement Reactions
作者:Xuenian Chen、Xiaoguang Bao、Beau Billet、Sheldon G. Shore、Ji-Cheng Zhao
DOI:10.1002/chem.201201342
日期:2012.9.17
thwarted by the formation of the diammoniate of diborane (DADB), an ionic byproduct. Based on our recent characterization of the formation mechanism of DADB, we have developed a large‐scale synthesis of pure AB by both increasing the basicity of the Lewis base of the borane carrier and using a nonpolar solvent to limit the formation of an intermediate, the ammonia diborane (AaDB). Conditions were optimized