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
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.
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, 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
