49538-77-4Relevant academic research and scientific papers
Superelectrophilic-initiated C-H functionalization at the β-position of thiophenes: A one-pot synthesis of trans-stereospecific saddle-shaped cyclic compounds
Wei, Ying,Zheng, Xiangping,Lin, Dongqing,Yuan, Haoxuan,Yin, Zhipeng,Yang, Lei,Yu, Yang,Wang, Shasha,Xie, Ling-Hai,Huang, Wei
supporting information, p. 10701 - 10709 (2019/09/09)
Superelectrophilic-initiated direct C-H functionalization of thiophenes at the β-position was developed. A series of trans-stereospecific [2,1-a]-IF-thiophene-fused cyclic compounds (4) with saddle-shaped structure were prepared in 17-30% yields through a
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.
(2,1-a)-Indenofluorene derivatives: Syntheses, X-ray structures, optical and electrochemical properties
Thirion, Damien,Poriel, Cyril,Rault-Berthelot, Joelle,Barriere, Frederic,Jeannin, Olivier
experimental part, p. 13646 - 13658 (2011/02/27)
Two novel fluorophores based on the (2,1-a)-indenofluorenyl backbone, dispiro[fluorene-9,11'-indeno[2,1-a]fluorene-12',9''-fluorene], (2,1-a)-DSF-IF and 11,12-dihydroindeno[2,1-a]fluorene (2,1-a)-IF have been prepared through original and efficient synthe
Fluorous dienophiles are powerful diene scavengers in diels-alder reactions
Werner, Stefan,Curran, Dennis P.
, p. 3293 - 3296 (2007/10/03)
(Matrix presented) Three fluorous dienophiles have been synthesized, and their value in scavenging an excess diene after Diels-Alder reactions is shown. The resulting fluorous derivatives are separated by solid-phase extraction on fluorous silica gel (FSP
Furan-2(3H)- and -2(5H)-ones. Part 8. Conformation and di-π-methane reactivity of the 4,7-disubstituted tetrahydroisobenzofuran-1-one system: A mechanistic and exploratory study
Muraoka, Osamu,Tanabe, Genzoh,Yamamoto, Emi,Ono, Masaru,Minematsu, Toshie,Kimura, Takayoshi
, p. 2879 - 2890 (2007/10/03)
Photoirradiation of cis- and trans-4-7-diphenyl-1,3,4,7-tetrahydroisobenzofuran-1-one cis- and trans-14 and its 4-methyl analogues cis- and trans-15 afford the corresponding di-π-methane rearrangement products 27, 28 and 24 in moderate yields. MM2 calculations for the cis- and trans-4,7-diphenyl substrates cis- and trans-14 showed that the planar structure is most stable for both compounds and that the molecular energy difference between the planar structure and the boat conformation is small enough for a boat-planar-boat conversion. On the basis of the calculations, the di-π-methane rearrangement of the compounds 14 and 15 is supposed to proceed via the boat conformation with a pseudoaxial phenyl substituent. An X-ray structure determination of the two diphenyl substrates cis- and trans-14 provides strong support for the validity of the calculations in predicting optimum structures for cis- and trans-disubstituted tetrahydroisobenzofuranone.
