School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.
Chem Commun (Camb). 2011 Dec 21;47(47):12592-4. doi: 10.1039/c1cc14469c. Epub 2011 Sep 5.
(-)-Sparteine induced lithiation of primary 2,4,6-triisopropylbenzoates and subsequent homologation of boronic esters is reported. A comparative study with lithiated N,N-diisopropylcarbamates has demonstrated the superiority of the hindered benzoate.
(-)-藜芦碱引发了伯 2,4,6-三异丙基苯甲酸酯的锂化反应,随后对硼酸酯进行了同系化。与锂化的 N,N-二异丙基氨基甲酸酯进行的比较研究表明,位阻苯甲酸酯具有优越性。