Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Noriyuki Ohneda"'
Autor:
Yoshitaka Hamashima, Noriyuki Ohneda, Yuhei Shimizu, Takashi Ohshima, Hiromichi Odajima, Hiroyuki Morimoto, Shuji Akai, Megumi Noshita
Publikováno v:
Organic Process Research & Development. 23:588-594
A study of ammonium salt-accelerated hydrazinolysis of unactivated amides is described. We first studied the reaction mechanism by kinetic experiments and DFT calculations and found that cooperation of the hydrazinium salt and hydrazine is important
Publikováno v:
The Chemical Record. 19:188-203
Microwave heating in chemical reactions was first reported in 1986. There have since been many reports employing microwave heating in organic chemistry, where microwave heating has afforded higher yields of products in shorter time periods. However,
Autor:
Reiko Azumi, Joshua P. Barham, Yasuo Norikane, Hiromichi Odajima, Takeo Yoshimura, Yoshinobu Ohno, Jun-ichi Sugiyama, Tadashi Okamoto, Noriyuki Ohneda, Emiko Koyama, Noriko Ito
Publikováno v:
Journal of Flow Chemistry. 8:147-156
We have developed a single-mode microwave reactor for continuous-flow synthesis with various methods of operation. This device measures the resonant frequency and modulates the oscillation frequency accordingly to maintain the maximum electric field
Autor:
Masato Abe, Nobuyuki Mase, Noriyuki Ohneda, Yoshitaka Hamashima, Hiromichi Odajima, Tadashi Okamoto, Souma Tamaoki, Kazuhiro Takeda, Hiromichi Egami, Takeo Yoshimura
Publikováno v:
Organic Process Research & Development. 22:1029-1033
We demonstrated the rapid Johnson–Claisen rearrangement of allyl alcohol and triethyl orthoacetate with a continuous flow apparatus combined with a microwave reactor. The reaction could be carried out without solvent, and only a catalytic amount of
Autor:
Hiromichi Odajima, Masahiro Mizuno, Tomohiro Ichikawa, Yoshinari Sawama, Shun Ueda, Hironao Sajiki, Noriyuki Ohneda, Yasunari Monguchi
Publikováno v:
Tetrahedron. 74:1810-1816
The microwave-assisted and continuous-flow Mizoroki–Heck reaction using a heterogeneous palladium catalyst supported on the anion-exchange resin DIAION WA30 (7% Pd/WA30) is described. The microwave resonance is finely adjusted to 2.4 GHz according
Autor:
Yoshitaka Hamashima, Joshua P. Barham, Hiromichi Odajima, Noriyuki Ohneda, Tadashi Okamoto, Souma Tamaoki, Hiromichi Egami
Publikováno v:
Organicbiomolecular chemistry. 16(41)
C-Alkylation of N-alkylamides with styrenes is reported, proceeding in ambient air/moisture to give arylbutanamides and pharmaceutically-relevant scaffolds in excellent mass balance. Various amide and styrene derivatives were tolerated, rapidly affor
Autor:
Noriyuki Ohneda, Tadashi Okamoto, Takamasa Hanai, Hiromichi Odajima, Shigeru Mineki, Chika Sato, Jun-ichi Sugiyama, Takeo Yoshimura
Publikováno v:
IEICE Transactions on Electronics. :1287-1294
Autor:
Joshua P, Barham, Satoko, Tanaka, Emiko, Koyama, Noriyuki, Ohneda, Tadashi, Okamoto, Hiromichi, Odajima, Jun-Ichi, Sugiyama, Yasuo, Norikane
Publikováno v:
The Journal of organic chemistry. 83(8)
The synergy of continuous processing and microwave heating technologies has unlocked scalable (g/h), safe and efficient reaction conditions for synthesis of fullerene/indene-based organic photovoltaic acceptor materials in a nonchlorinated solvent wi
Autor:
Takashi Ikawa, Hiromichi Egami, Masahiro Egi, Noriyuki Ohneda, Shuji Akai, Jun-ichi Sugiyama, Hiromichi Odajima, Saori Yokozawa, Ken Muramatsu, Yoshitaka Hamashima, Taira Sawairi, Tadashi Okamoto, Masashi Fujita
Publikováno v:
RSC Advances. 5:10204-10210
Microwave-assisted organic synthesis has many advantages and is widely applied to a variety of reactions. We have developed a new single-mode microwave applicator, specific to continuous flow synthesis, whose main feature is that it generates a unifo
Publikováno v:
Journal of Labelled Compounds and Radiopharmaceuticals. 57:680-686
Microwave technology has been successfully applied to enhance the effectiveness of radiolabeling reactions. The use of a microwave as a source of heat energy can allow chemical reactions to proceed over much shorter reaction times and in higher yield