201012-68-2Relevant articles and documents
Synthesis of (+)-sorokinianin
Watanabe, Hidenori,Onoda, Takahiro,Kitahara, Takeshi,Mori, Kenji
, p. 6015 - 6018 (1997)
Sorokinianin (1), an inhibitor of barley germination, was synthesized in optically active form employing d-carvone as the only chiral source. The key steps are stereoselective intra- and intermolecular aldol reactions to construct the bicyclo[3.2.1]octane
Diels-Alder route to norbornane derived vicinal phosphane/borane frustrated Lewis pairs for the metal-free catalytic hydrogenation of α, β-unsaturated ketones
W?lke, Christian,Daniliuc, Constantin G.,Kehr, Gerald,Erker, Gerhard
supporting information, (2019/08/26)
The [4+2] cycloaddition reaction of the (dimesitylphosphino)cyclopentadienes 5a,b with N-phenylmaleimide gave the norbornene derivative 9. Its reduction with LiAlH4 produced the N-phenylpyrrolidino-annulated system 10. Treatment with Piers' bor
Platinum Nanoparticles Stabilized by Glycerodendrimers: Synthesis and Application to the Hydrogenation of α,β-Unsaturated Ketones under Mild Conditions
Menot, Bérengère,Salmon, Lionel,Bouquillon, Sandrine
supporting information, p. 4518 - 4523 (2015/10/06)
Air-stable platinum nanoparticles stabilized by glycerodendrimers were prepared in water and analyzed by TEM. These platinum nanoparticles showed good catalytic activity for the reduction of α,β-unsaturated ketones to saturated ketones at room temperature in water or in water/THF (1:1) under H2 (101.3 kPa). The catalytic species was recovered and recycled several times.
Pichia stipitis OYE 2.6 variants with improved catalytic efficiencies from site-saturation mutagenesis libraries
Patterson-Orazem, Athéna,Sullivan, Bradford,Stewart, Jon D.
, p. 5628 - 5632 (2015/01/09)
An earlier directed evolution project using alkene reductase OYE 2.6 from Pichia stipitis yielded 13 active site variants with improved properties toward three homologous Baylis-Hillman adducts. Here, we probed the generality of these improvements by testing the wild-type and all 13 variants against a panel of 16 structurally-diverse electron-deficient alkenes. Several substrates were sterically demanding, and as hoped, creating additional active site volume yielded better conversions for these alkenes. The most impressive improvement was found for 2-butylidenecyclohexanone. The wild-type provided less than 20% conversion after 24 h; a triple mutant afforded more than 60% conversion in the same time period. Moreover, even wild-type OYE 2.6 can reduce cyclohexenones with very bulky 4-substituents efficiently.