32466-55-0Relevant articles and documents
Allyl-Palladium-Catalyzed α,β-Dehydrogenation of Carboxylic Acids via Enediolates
Zhao, Yizhou,Chen, Yifeng,Newhouse, Timothy R.
supporting information, p. 13122 - 13125 (2017/09/13)
A highly practical and step-economic α,β-dehydrogenation of carboxylic acids via enediolates is reported through the use of allyl-palladium catalysis. Dianions underwent smooth dehydrogenation when generated using Zn(TMP)2?2 LiCl as a base in the presence of excess ZnCl2, thus avoiding the typical decarboxylation pathway of these substrates. Direct access to 2-enoic acids allows derivatization by numerous approaches.
Selective aerobic oxidation of allylic and benzylic alcohols catalyzed by N-hydroxyindole and copper(I) chloride
Shen, Shu-Su,Kartika, Vita,Tan, Ying Shan,Webster, Richard D.,Narasaka, Koichi
supporting information; experimental part, p. 986 - 990 (2012/03/12)
In the presence of copper(I) chloride, tert-butyl 1-hydroxy-2-methyl-6- trifluoromethyl-1H-indole-3-carboxylate acted as a catalyst for the chemoselective aerobic oxidation of allylic and benzylic alcohols. A variety of primary and secondary allylic and benzylic alcohols were oxidized into the corresponding α,β-unsaturated carbonyl compounds in good yields without affecting non-allylic alcohols.
INHIBITORS OF YEAST FILAMENTOUS GROWTH AND METHOD OF THEIR MANUFACTURE
-
Page/Page column 12-14, (2008/06/13)
The invention broadly relates to the use of α, β-unsaturated fatty acids to inhibit the filamentous growth of fungi and yeasts and to a method for producing same. In particular the invention relates to the use of optionally substituted C8 to C15 α, β-unsaturated fatty acids or salts, esters or amides thereof for inhibiting or retarding the yeast-to-mycelium transition of organisms having a dimorphic life cycle.
Synthesis of (+)-ginnol, a type R(long)-CH(OH)-R'(long) alcohol, by an asymmetric β,γ-unsaturated ester→γ-butyrolactone conversion
Berkenbusch, Thilo,Brueckner, Reinhard
, p. 11471 - 11480 (2007/10/03)
An enantioselective synthesis of (+)-ginnol (17) illustrates how Sharpless' asymmetric dihydroxylation may be used for the asymmetric synthesis of monoalcohols. The dihydroxylation was perfomed with AD mix α and the unsaturated ester trans-9. The resulting lactone cis-13 was dehydrated giving butenolide 13 (96.2% ee) from where we proceeded to the title compound 17 in three steps. Butenolide 13 showed 88-94%ee when ester trans-9 contained cis-isomer due to too forcing reaction condition on the way to the precursor acids trans- and cis-7.