Synthesis of the Sex Pheromone of the Oleander Scale (<i>Aspidiotus nerii</i>)
作者:Mary Montaño Castañeda、Javier Marzo Bargues、Jaime Primo、Ismael Navarro Fuertes
DOI:10.1021/acs.joc.9b01001
日期:2019.7.5
A totalsynthesis of the oleander scale [Aspidiotus nerii (Bouche)] sex pheromone, the unique sesquiterpenoid containing a cyclobutane moiety of this class of compounds, has been developed. In order to implement this sex pheromone as a new environmentally friendly tool to manage this pest, a more cost-effective, multigram synthesis was required. This new synthetic route, having a Blaise reaction, iron-catalyzed
Stereoselective Synthesis of Highly Substituted Tetrahydrofurans through Diverted Carbene OH Insertion Reaction
作者:Simon M. Nicolle、William Lewis、Christopher J. Hayes、Christopher J. Moody
DOI:10.1002/anie.201502484
日期:2015.7.13
Copper‐ or rhodium‐catalyzed reactions of diazocarbonyl compounds with β‐hydroxyketones give highlysubstitutedtetrahydrofurans with excellent diastereoselectivity. Under mild conditions, the single‐step process starts as a carbene OH insertion reaction, but is diverted by an intramolecular aldol reaction.
6-(2-Haloethyl)-2,2-dimethyl-4H-1,3-dioxins: versatile haloethyl vinyl ketone equivalents for carbocycle construction
作者:Thomas J. Greshock、Raymond L. Funk
DOI:10.1016/j.tetlet.2006.05.171
日期:2006.7
in five steps from ethyl acetoacetate. A variety of enolates were then alkylated with this iodide. The resulting 6-alkyl-4H-1,3-dioxins were either subjected to further transformations and/or heated (or subjected to a Lewis acid) to effect facile retrocycloaddition reactions. The resulting enones were found to smoothly participate in conjugateaddition or olefin metathesis reactions to provide various
由乙酰乙酸乙酯按五步制备6-(2-碘乙基)-2,2-二甲基-4 H -1,3-二恶英。然后将各种烯醇化物用该碘化物烷基化。将所得的6-烷基-4 H -1,3-二恶英进行进一步转化和/或加热(或进行路易斯酸)以进行容易的逆环加成反应。发现所得的烯酮平稳地参与共轭加成或烯烃复分解反应以提供各种碳环系统。这些实施例总体上记录了二恶英2与碘乙基乙烯基酮的合成当量,此外,描绘了一种用于完成与亲核试剂在β'处,随后与β亲电部位进行顺序反应的策略。
MICROORGANISMS AND METHODS FOR THE BIOSYNTHESIS OF BUTADIENE
申请人:Genomatica, Inc.
公开号:US20140155567A1
公开(公告)日:2014-06-05
The invention provides non-naturally occurring microbial organisms having a butadiene pathway. The invention additionally provides methods of using such organisms to produce butadiene.
Microorganisms for producing butadiene and methods related thereto
申请人:Genomatica, Inc.
公开号:US10006055B2
公开(公告)日:2018-06-26
The invention provides non-naturally occurring microbial organisms having a butadiene or crotyl alcohol pathway. The invention additionally provides methods of using such organisms to produce butadiene or crotyl alcohol.