The synthesis of epi-epoxydon utilising the Baylis–Hillman reaction
摘要:
-(+/-)-epi-Epoxydon was synthesised by means of a triethylaluminium/ tri-n-butylphosphine-catalysed Baylis-Hillman reaction between an O-protected epoxidised hydroxyquinol core and paraformaldehyde, constituting the first application of the Baylis-Hillman reaction to a highly functionalised beta-substituted enone. (C) 2002 Elsevier Science Ltd. All rights reserved.
Filling Some Blanks in a Divergent Approach to Gabosines: Enantioselective Synthesis of (–)‐Epiepoxydon, (+)‐Phyllostine, (–)‐Gabosine D, and (–)‐Gabosine E
polyoxygenated cyclohexane target molecules. Key steps in the synthesis of (–)-gabosines D and E from (4R,6S)-3 are the stereoselective hydroxymethylation at the α-carbonyl position leading to (+)-4, and the subsequent reagent-controlled epoxidation of the carbon–carbon double bond. A branching in the sequence also allowed the synthesis of the anhydrogabosines (–)-epiepoxydon and (+)-phyllostine.
gabosines D 和 E 的左旋对映异构体是通过不同的方法合成的,该方法同样适用于从天然来源中分离出来的右旋对映异构体的合成。该方法依赖于对甲氧基苯酚的初始去对称化,然后进行酶拆分,分别提供合成子 3 的两种对映异构体。这种多功能合成子可以进一步转化为多种多氧化环己烷目标分子。从 (4R,6S)-3 合成 (-)-gabosine D 和 E 的关键步骤是在导致 (+)-4 的 α-羰基位置的立体选择性羟甲基化,以及随后的试剂控制的碳环氧化-碳双键。
Stereospecific synthesis of dl-isoepoxydon, a new metabolite of importance to the patulin pathway
作者:David Teh-Wei Chou、Bruce Ganem
DOI:10.1021/ja00547a052
日期:1980.12
The synthesis of epi-epoxydon utilising the Baylis–Hillman reaction
作者:Thorsten Genski、Richard J.K. Taylor
DOI:10.1016/s0040-4039(02)00529-4
日期:2002.5
-(+/-)-epi-Epoxydon was synthesised by means of a triethylaluminium/ tri-n-butylphosphine-catalysed Baylis-Hillman reaction between an O-protected epoxidised hydroxyquinol core and paraformaldehyde, constituting the first application of the Baylis-Hillman reaction to a highly functionalised beta-substituted enone. (C) 2002 Elsevier Science Ltd. All rights reserved.