440-60-8Relevant articles and documents
Zupan et al.
, p. 4541 (1977)
Mono- and Di-Mesoionic Carbene-Boranes: Synthesis, Structures and Utility as Reducing Agents
Stein, Felix,Kirsch, Marius,Beerhues, Julia,Albold, Uta,Sarkar, Biprajit
supporting information, p. 2417 - 2424 (2021/06/17)
Mesoionic carbenes (MIC) of the 1,2,3-triazol-5-ylidene type are currently popular ligands in organometallic chemistry. Their use in main group chemistry has been rather limited. In this contribution we present mono- and di-MIC-boranes with MICs based on triazolylidenes. The synthesis involves in-situ deprotonation of the corresponding triazolium salts and their reaction with boranes to form the desired compounds. Whereas this reaction route worked well for all triazolium salts derived from the 1,4-regioisomer of the triazoles, for the methlyene-bridged bi-triazolium salt derived from a 1,5-substiuted triazole, we observed the unexpected decomposition of the bi-triazolium and the formation of a triazole-borane with a new N?B bond. All compounds were characterized via multinuclear NMR spectroscopy, mass spectrometry, and single crystal X-ray diffraction. Furthermore, the MIC-boranes were used as reducing agents for the reduction of the C=O of aldehydes to the corresponding alcohols.
Method for preparing polyfluorobenzyl alcohol
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Paragraph 0039; 0040, (2018/05/16)
The invention relates to a method for preparing polyfluorobenzyl alcohol, and belongs to the technical field of organic synthesis. The method comprises the following steps: 1. allowing polyfluorobenzoic acid and a dehydrating reagent to a reflux reaction; 2 adding sodium borohydride to a product obtained in step 1 to perform a reduction reaction to obtain the polyfluorobenzyl alcohol. Although themethod provided by the invention requires two steps, the selectivity of the two-step reaction is high, no side reaction exists, no organic three wastes exist, and the yield is also higher than that of the existing method.