Enantioselective dialkylation of 1,2-phthalicdicarboxaldehyde
作者:Henk Kleijn、Johann T.B.H Jastrzebski、Jaap Boersma、Gerard van Koten
DOI:10.1016/s0040-4039(01)00586-x
日期:2001.6
procedure is reported for the enantioselective synthesis of C2-symmetric diols derived from 1,2-phthalicdicarboxaldehyde. The first step involves the enantioselectiveaddition of a dialkylzinc compound to one of the aldehyde groups, affording a lactol organozinc derivative. In the second step this lactol derivative is converted to the appropriate diol with the aid of a Grignard reagent and subsequent hydrolysis
Optical Resolution of <i>C</i><sub>2</sub>-Symmetric Racemic 1,4-Diols with <i>o</i>-Xylylene Structure by Chiral Resolving Agent (<i>S</i>)-ALBO-V
作者:Masatoshi Asami、Lvling Zhong、Naoki Sekiguchi、Kumiko Yamada、Yuya Hiwatashi、Toshiro Taniguchi、Naoya Hosoda、Suguru Ito
DOI:10.1246/bcsj.20150066
日期:2015.7.15
Optical resolution of C2-symmetric racemic 1,4-diols, 1,2-bis(1-hydroxyalkyl)benzene, was examined using (S)-5-allyl-2-oxabicyclo[3.3.0]octene ((S)-ALBO-V) as chiral resolving agent. Diastereomeric...