Stereoselective total syntheses of conduritols-F and -A from tricyclo[6.2.1.02,7]undeca-4,9-dien-3,6-dione
作者:Quintino A Mgani、Antonius J.H Klunder、Mayunga H.H Nkunya、Binne Zwanenburg
DOI:10.1016/0040-4039(95)00829-2
日期:1995.6
Effective syntheses of conduritols-F and A have been accomplished starting from cyclopentadiene/benzoquinone adduct . Key intermediates are tricyclic acetates and which, when subjected to flash vacuum thermolysis, afford epoxycyclohexene diacetate and cyclohexadiene diacetate , respectively. Conduritol-F is obtained from by hydrolysis while conduritol-A is produced from by osmylation. In both cases
Catalytic behaviour of chloroperoxidase from Caldariomyces fumago in the oxidation of cyclic conjugated dienes
作者:Claudia Sanfilippo、Giovanni Nicolosi
DOI:10.1016/s0957-4166(02)00509-8
日期:2002.9
Chloroperoxidase fromCaldariomycesfumago has been investigated as a catalyst for the oxidation of cyclic conjugated dienes. The nature of the substituents and the size of the carbocycle affect the enantioselectivity of the enzyme. An unexpected course of the CPO-catalyzed oxidation has been observed in the reaction of cis,cis-1,3-cyclooctadiene.
Enantiospecific and stereoselective synthesis of (–)-conduritol C from chlorobenzene via microbial oxidation and epoxidation
作者:Howard A. J. Carless
DOI:10.1039/c39920000234
日期:——
A four-step route to (â)-conduritol C 1 is described, via the enantiospecific conversion of chlorobenzene to the diene cis-diol 7 and subsequent cis-epoxidation to yield 8.
Synthesis of and (−)-conduritol F from d-sorbitol by a highly stereoselective intramolecular pinacol coupling promoted by samarium diiodide
作者:Jose Luis Chiara、Nuria Valle
DOI:10.1016/0957-4166(95)00246-l
日期:1995.8
(−)-conduritol F starting from readily available d-sorbitol is described. The route involves as a key step an efficient one-pot sequence consisting of the Swern oxidation of a 1,6-diol followed by a highly stereoselective intramolecular pinacol coupling of the resultant dialdehyde, promoted by samarium diiodide.
A diastereocontrolled route to conduritols A-F has been developed starting from a commonchiralbuildingblock containing an oxabicyclo[3.2.1]octane framework.