Entity

Time filter

Source Type


Pan S.,Waseda University | Endo K.,Waseda Institute for Advanced Study | Shibata T.,Waseda University
Organic Letters | Year: 2012

A cationic Ir(I)-C 3-TUNEPHOS complex catalyzed an intermolecular hydroamination of styrene derivatives with various heteroaromatic amines. The reaction gave Markovnikov products with perfect regioselectivity and good enantioselectivity under solvent-free conditions. © 2012 American Chemical Society.


Endo K.,Waseda Institute for Advanced Study | Ohkubo T.,Waseda University | Hirokami M.,Waseda University | Shibata T.,Waseda University
Journal of the American Chemical Society | Year: 2010

The palladium-catalyzed Suzuki-Miyaura cross-coupling on a multisubstituted sp3-carbon in 1,1-diborylalkanes was achieved at room temperature. The generation of a monoborate intermediate by virtue of the adjacent B atom could result in the chemoselective coupling reaction under ambient conditions. © 2010 American Chemical Society.


Kamide N.,Waseda Institute for Advanced Study
ICAART 2010 - 2nd International Conference on Agents and Artificial Intelligence, Proceedings | Year: 2010

It is known that linear-time temporal logic (LTL) is one of the most useful logics for reasoning about time and for verifying concurrent systems. It is also known that the satisfiability problem for LTL is PSPACE-complctc and that finding NP-complete fragments of LTL is an important issue for constructing efficiently executable temporal logics. In this paper, an alternative NP-complete logic called bounded linear-time temporal logic is obtained from LTL by restricting the time domain of temporal operators.


Pan S.,Waseda University | Endo K.,Waseda Institute for Advanced Study | Shibata T.,Waseda University
Organic Letters | Year: 2011

A cationic Ir(I)-tolBINAP complex catalyzed an enantioselective C-C bond formation initiated by secondary sp 3 C-H bond cleavage adjacent to a nitrogen atom. The reaction of 2-(alkylamino)pyridines with various alkenes gave chiral amines in good yields with high enantiomeric excesses. © 2011 American Chemical Society.


Endo K.,Waseda Institute for Advanced Study | Endo K.,Japan Science and Technology Agency | Ohkubo T.,Waseda University | Shibata T.,Waseda University
Organic Letters | Year: 2011

The chemoselective Pd-catalyzed Suzuki-Miyaura cross-coupling reaction using a diborylmethane is reported. The use of an equimolar amount of base with a diborylmethane realized chemoselective coupling for the synthesis of various benzylboronate derivatives. Sterically hindered aryl bromides can give products in moderate to excellent yields. © 2011 American Chemical Society.

Discover hidden collaborations