Recent reports have suggested the use of the relative abundances of longchain (n-C37) alken-2-ones (1, 2, and 3) in Quaternary marine sediments as a palaeoclimate indicator1. Here we report the synthesis of these ketones with all-E and all-Z stereochemistry. Use of the synthesised compounds has shown that the natural counterparts in the alga and in marine sediments have the unusual and unexpected
The totalsynthesis of the natural (8E,15E,22E)-heptatriaconta-8,15,22-trien-2-one and (15E,22E)-heptatriaconta-15,22-dien-2-one is reported. Our synthesis involved a modular and convergent approach, based on the copper-catalyzed addition of Grignardreagents to allylic olefins. The obtention of these methyl ketones is an important asset for the use of these compounds as analytical patterns with application
天然(8 E ,15 E ,22 E )-heptatriaconta-8,15,22-trien-2-one和(15 E ,22 E )-heptatriaconta-15,22-dien-2-one的全合成据报道。我们的合成涉及一种模块化和收敛的方法,基于铜催化格氏试剂加成烯丙基烯烃。获得这些甲基酮是将这些化合物用作分析模式并应用于地球科学的重要资产。
RECHKA, J. A.;MAXWELL, J. R., TETRAHEDRON LETT., 29,(1988) N 21, C. 2599-2600
作者:RECHKA, J. A.、MAXWELL, J. R.
DOI:——
日期:——
USE OF MARINE ALGAE FOR PRODUCING HYDROCARBONS
申请人:Lindell Scott R.
公开号:US20110167714A1
公开(公告)日:2011-07-14
In certain aspects, the disclosure provides methods for producing hydrocarbons from alkenone-producing algae, such as algae species of the
Isochrysis
family.
USE OF MARINE ALGAE FOR PRODUCING POLYMERS
申请人:Lindell Scott R.
公开号:US20120165490A1
公开(公告)日:2012-06-28
In certain aspects, the disclosure provides methods for producing polymers from alkenone-producing algae, such as algae species of the Isochrysis family.