Biphenyl dioxygenase-catalysed cis-dihydroxylation of 2-chloroquinoline, 2-chloro-3-methylquinoline and 2-chloro-6-phenylpyridine substrates yielded the corresponding enantiopure cis-dihydrodiols; enantiopure 2,2â²-bipyridines, synthesised in four steps from 2-chloroquinoline, proved to be efficient chiral ligands in catalytic asymmetric allylic oxidation and cyclopropanation reactions of alkenes.
双苯基二氧化酶催化的
2-氯喹啉、
2-氯-3-甲基喹啉和
2-氯-6-苯基吡啶底物的顺式双羟化反应产出了相应的对映体纯顺式双羟醇;经过四步合成的对映体纯
2,2'-联吡啶在烯烃的催化不对称烯丙氧化和
环丙烷化反应中证明是高效的手性
配体。