23182-07-2Relevant articles and documents
Highly-functionalized arene synthesis based on palladium on carbon-catalyzed aqueous dehydrogenation of cyclohexadienes and cyclohexenes
Yasukawa, Naoki,Yokoyama, Hiroki,Masuda, Masahiro,Monguchi, Yasunari,Sajiki, Hironao,Sawama, Yoshinari
supporting information, p. 1213 - 1217 (2018/03/28)
Transition metal-catalyzed dehydrogenation is a clean oxidation method requiring no additional oxidants. We have accomplished a heterogeneous Pd/C-catalyzed aqueous dehydrogenation of 1,4-cyclohexadienes and cyclohexenes to give the corresponding highly-functionalized arenes. Furthermore, various arenes could be efficiently constructed in a one-pot manner via a Diels-Alder reaction and the following dehydrogenation.
Direct and waste-free amidations and cycloadditions by organocatalytic activation of carboxylic acids at room temperature
Al-Zoubi, Raed M.,Marion, Olivier,Hall, Dennis G.
supporting information; experimental part, p. 2876 - 2879 (2009/02/06)
(Chemical Equation Presented) Taming carboxylic acids: ortho-Iodo- and ortho-bromophenylboronic acids are exceptional organocatalysts in atom-economical amidations between free carboxylic acids and amines, including functionalized ones, and can also provide LUMO-lowering activation in [4 + 2] cycloadditions of α,β-unsaturated carboxylic acids.
Fructose-derived ionic liquids: Recyclable homogeneous supports
Handy, Scott T.,Okello, Maurice
, p. 8399 - 8402 (2007/10/03)
A new homogeneous support has been developed that is based on a fructose-derived ionic liquid. It has been applied to the preparation of a series of supported Diels-Alder adducts. The cleavage of these adducts from the ionic liquid has resulted in some interesting observations regarding the base stability of imidazolium cations. Using a transesterification cleavage, the ionic support can be recovered and recycled.