20116-65-8Relevant articles and documents
Synthesis and reactions of rhenium enyne, and vinylalkenylidene complexes
Casey, Charles P.,Ha, Yunkyoung,Powell, Douglas R.
, p. 185 - 194 (1994)
Reaction of Cp*Re(CO)2(THF) with HCCC(CH3)=CH2 produced the conjugated enyne complex Cp*(CO)2Re2-HCCC(CH3)=CH2> (1).Attempted preparation of an η3-propargyl complex by protonation of 1 with HBF4 failed.T
Eschenmoser,Schinz
, p. 171,175 (1950)
Ni-Catalyzed Direct Carboxylation of Aryl C?H Bonds in Benzamides with CO2
Li, Bin,Pei, Chunzhe,Wang, Baiquan,Zong, Jiarui
, (2021/12/08)
The direct carboxylation of inert aryl C?H bond catalyzed by abundant and cheap nickel is still facing challenge. Herein, we report the Ni-catalyzed direct carboxylation of aryl C?H bonds in benzamides under 1 atm of CO2 to afford various methyl carboxylates or phthalimides, dealing with different post-processing. The reaction displays excellent functional group tolerance and affords moderate to high carboxylation yields under mild conditions. Detail mechanistic studies suggest that a Ni(0)?Ni(II)?Ni(I) catalytic cycle may be involved in this reaction. (Figure presented.).
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.
