Cobalt‐Catalyzed Aminocarbonylation of Alkyl Tosylates: Stereospecific Synthesis of Amides
作者:Brendon T. Sargent、Erik J. Alexanian
DOI:10.1002/anie.201905173
日期:2019.7.8
functionality in chemical synthesis. Despite broad application of this transformation using aryl or vinyl electrophiles, there are few examples involving unactivated aliphatic substrates. Furthermore, there are no stereocontrolled aminocarbonylations of alkyl electrophiles known. Herein, we report a stereospecific aminocarbonylation of unactivated alkyl tosylates for the synthesis of enantioenriched amides
Regio- and stereoisomers of 1,2,ω-trimethyldecyl propionate (ω = 5–9) were prepared from stereochemically pure chiral building blocks as sexpheromone candidates of a pinesawfly; Diprion nipponica. Among the synthesized candidates, (1S,2R,8S)-1,2,8-trimethyldecyl propionate was found to be the sexpheromone of D. nipponica, based on compatibility of its GC-MS data with that of the extract of females
Pheromone synthesis. Part 243: Synthesis and biological evaluation of (3R,13R,1′S)-1′-ethyl-2′-methylpropyl 3,13-dimethylpentadecanoate, the major component of the sex pheromone of Paulownia bagworm, Clania variegata, and its stereoisomers
作者:Kenji Mori、Takuya Tashiro、Boguang Zhao、David M. Suckling、Ashraf M. El-Sayed
DOI:10.1016/j.tet.2010.02.028
日期:2010.4
All of the fourstereoisomers of (1′S)-1′-ethyl-2′-methylpropyl 3,13-dimethylpentadecanoate, the majorcomponent of the female sexpheromone of Clania variegata, were synthesized by employing olefin cross metathesis as the key reaction and starting from (R)- or (S)-2-methyl-1-butanol, (R)- or (S)-citronellal, and (S)-2-methyl-3-pentanol. Their bioassay revealed the (3R,13R,1′S)-isomer as the bioactive
The invention relates to monocrystalline single crystals of metal-organic framework materials comprising at least one aluminium metal ion, processes for preparing the same, methods for employing the same, and the use thereof. The invention also relates to monocrystalline aluminium metal-organic frameworks.