The complex
OsO4·(S,S)-1,2-diphenyl-N,
N′-bis(2,4,6-trimethylbenzyl)ethane-1,2-diamine is an
effective reagent for the desymmetrisation of
meso-1,2-bis(3,6-dihydro-2H-pyran-2-yl)ethanes by asymmetric
dihydroxylation; this process, whose sense of diastereoselectivity depends
on substitution and stereochemistry, has been exploited in the synthesis of
a C-linked analogue of allolactose.
复合物 OsO4-(S,S)-1,2
-二苯基-N,N′-双(2,4,6-三甲基苄基)
乙烷-1,2-二胺是一种有效的试剂,可通过不对称二羟基化作用使中-1,2-双(3,6-二氢-
2H-吡喃-2-基)
乙烷非对称化;这一过程的非对映选择性取决于取代和立体
化学,已被用于合成异半
乳糖的 C 链类似物。