作者:Ben J. Mellor、Patricia E. Murray、Eric J. Thomas
DOI:10.1016/s0040-4020(97)10274-5
日期:1998.1
Chiral 2-formyl and 2-(1-oxoalkyl)-1,3-dioxolanes have been prepared by ozonolysis of the corresponding alkenes and by oxidation of 2-(1-hydroxyalkyl)-1,3-dioxolanes, which are readily available from 2-(tributylstannyl)dioxolanes, and taken through to αβ-unsaturated esters by condensation with stabilized ylids. The (4′S,5′S)-1-benzyl-5-[4,5-bis(ethoxycarbonyl)-1,3-dioxolan-2-yl]-2-pyridone 47 was prepared
手性2-甲酰基和2-(1-氧代烷基)-1,3-二氧戊环已通过相应的烯烃的臭氧分解和2-(1-羟烷基)-1,3-二氧戊环的氧化而制得,它们可容易地购自2-(三丁基锡烷基)二氧戊环,并通过与稳定的缩合缩合成α-不饱和酯。的(4'小号,5'小号)-1-苄基-5-〔4,5-双(乙氧羰基)-1,3-二氧戊环-2-基] -2-吡啶酮47制备的模拟-核苷,但被发现不稳定。