Stereoselective Synthesis of Alcohols, XLV:1Recent Developments in the Generation of the Stereotriad "D"
摘要:
在合成多酮衍生天然产物的过程中,立体三聚体 D 一直是最难以获得的结构单元。许多从事此类工作的研究小组都针对这一看似简单的结构单元提出了独创的方法。最流行的方法是生成一个包含三元组 D 的所有立体中心的结构单元。我们在此介绍自己获得这种构筑基块的途径,它基于甲基丙烯醛的对映选择性羰基硼化反应,然后是非对映选择性氢硼化反应。
Stereoselective Synthesis of Alcohols, XLV:1Recent Developments in the Generation of the Stereotriad "D"
摘要:
在合成多酮衍生天然产物的过程中,立体三聚体 D 一直是最难以获得的结构单元。许多从事此类工作的研究小组都针对这一看似简单的结构单元提出了独创的方法。最流行的方法是生成一个包含三元组 D 的所有立体中心的结构单元。我们在此介绍自己获得这种构筑基块的途径,它基于甲基丙烯醛的对映选择性羰基硼化反应,然后是非对映选择性氢硼化反应。
The absolute and relative configuration of muamvatin
作者:Reinhard W. Hoffmann、Georg Dahmann
DOI:10.1016/s0040-4039(00)77504-6
日期:1993.2
Both epimers of the aldehyde 2, a degradation product of muamvatin, have been synthesized in a streodefined manner. This allowed us to assign the relative and absoluteconfiguration to muamvatin as shown in 19. Key to this synthesis was a novel chiral building block 10, representing the stereotriad D.
Stereoselective Synthesis of Alcohols, XLV:<sup>1</sup>Recent Developments in the Generation of the Stereotriad "D"
作者:Reinhard W. Hoffmann、Georg Dahmann、Marc W. Andersen
DOI:10.1055/s-1994-25537
日期:——
The stereotriad D has been the most elusive one to obtain in the course of the synthesis of polyketide derived natural products. Many research groups involved in such endeavours have contributed original approaches to this seemingly simple structural unit. The most popular approach is to generate a building block that contains all the stereocenters of the triad D. The molecular skeleton may then be extended from such a building block in two directions. We describe here our own route to such building blocks, being based on an enantioselective crotylboration of methacrolein followed by a diastereoselective hydroboration reaction.
在合成多酮衍生天然产物的过程中,立体三聚体 D 一直是最难以获得的结构单元。许多从事此类工作的研究小组都针对这一看似简单的结构单元提出了独创的方法。最流行的方法是生成一个包含三元组 D 的所有立体中心的结构单元。我们在此介绍自己获得这种构筑基块的途径,它基于甲基丙烯醛的对映选择性羰基硼化反应,然后是非对映选择性氢硼化反应。