794512-47-3Relevant academic research and scientific papers
General silaindene synthesis based on intramolecular reductive cyclization toward new fluorescent silicon-containing π-electron materials
Xu, Caihong,Wakamiya, Atsushi,Yamaguchi, Shigehiro
, p. 3707 - 3710 (2004)
(Chemical Equation Presented) The reaction of (o-silylphenyl)acetylene derivatives with lithium naphthalenide undergoes intramolecular reductive cyclization to produce various silaindene derivatives. On the basis of this methodology, a series of silaindene-containing π-electron systems are synthesized that show intense blue to greenish-blue fluorescence.
Aromatic Metamorphosis of Thiophenes by Means of Desulfurative Dilithiation
Kaga, Atsushi,Iida, Hirokazu,Tsuchiya, Shun,Saito, Hayate,Nakano, Koji,Yorimitsu, Hideki
supporting information, p. 4567 - 4572 (2021/02/12)
A new mode of aromatic metamorphosis has been developed, which allows thiophenes and their benzo-fused derivatives to be converted to a variety of exotic heteroles. This transformation involves 1) the efficient generation of key 1,4-dianions by means of desulfurative dilithiation with lithium powder and 2) the subsequent trapping of the dianions with heteroatom electrophiles in a one-pot manner. Via the desulfurative dilithiation, the sulfur atoms of thiophenes are replaced also with a carbon–carbon double bond or a 1,2-phenylene for the construction of benzene rings.
Gold-catalysed alkenyl- and arylsilylation reactions forming 1-silaindenes
Matsuda, Takanori,Yamaguchi, Yoshiyuki,Shigeno, Masanori,Sato, Shinya,Murakami, Masahiro
, p. 8697 - 8699 (2011/09/15)
In the presence of gold(i)-phosphine catalysts, alkenyl- and arylsilanes undergo intramolecular cyclisation reactions onto appendant alkyne moieties to afford 1-silaindene derivatives. The reaction pathways vary depending on the substituent on silicon. The Royal Society of Chemistry 2011.
Hydrosilylation-metathesis sequence leading to 1-silaindenes
Matsuda, Takanori,Yamaguchi, Yoshiyuki,Ishida, Naoki,Murakami, Masahiro
supporting information; experimental part, p. 2743 - 2746 (2010/12/29)
1-Silaindenes are prepared starting from (2-vinylphenyl)hydrosilanes and alkynes through a ruthenium-catalyzed hydrosilylation-ring-closing-metathesis sequence. The method is successfully applied to the synthesis of molecules containing multiple silaindene units.
Synthesis of benzo[b]siloles via KH-promoted cyclization of (2-Alkynylphenyl)silanes
Llies, Laurean,Tsuji, Hayato,Nakamura, Eiichi
supporting information; experimental part, p. 3966 - 3968 (2009/12/03)
(Figure Presented) (2-Alkynylphenyl)silanes undergo intramolecular cyclization in the presence of an excess or a subequimolar amount of potassium hydride to give a variety of new 2-substituted benzosiloles in good to excellent yields. Some of these compou
Modular synthesis of functionalized benzosiloles by tin-mediated cyclization of (o-alkynylphenyl)silane
Ilies, Laurean,Tsuji, Hayato,Sato, Yoshiharu,Nakamura, Eiichi
, p. 4240 - 4241 (2008/09/21)
Trimethylstannyllithium promotes cyclization of (o-alkynylphenyl)silane into a 3-stannylbenzosilole, via addition to the triple bond followed by intramolecular cyclization in a cascade fashion. This intermediate can be functionalized with either electrophiles or nucleophiles to allow modular synthesis of 2,3-disubstituted benzosiloles. One of these compounds, a phenylene-bis(benzosilole) compound, shows electron drift mobility as high as 6 × 10-4 cm2/Vs in an amorphous film, making this class of compounds promising electronic materials for organic light emitting devices and organic photovoltaic cells. Copyright
Synthesis of silole skeletons via metathesis reactions
Matsuda, Takanori,Yamaguchi, Yoshiyuki,Murakami, Masahiro
, p. 561 - 564 (2008/12/22)
Silole skeletons are constructed by ring-closing olefin metathesis of silicon-tethered dienes and trienes. A silicon-tethered enyne is also converted to a 2-alkenyl-1-silaindene via ruthenium-catalyzed ring-closing enyne metathesis. Georg Thieme Verlag Stuttgart.
Synthesis, structures, and photophysical properties of silicon and carbon-bridged ladder oligo(p-phenylenevinylene)s and related π-electron systems
Yamaguchi, Shigehiro,Xu, Caihong,Yamada, Hiroshi,Wakamiya, Atsushi
, p. 5365 - 5377 (2007/10/03)
A series of partially or fully fused ladder oligo(p-phenylenevinylene)s (LOPVs) and related π-electron systems has been synthesized. Thus, the intramolecular reductive cyclization of o-silyl-substituted bis(phenylethynyl) benzenes with lithium naphthaleni
