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- Publications
- Influence
Effects of amine nature and nonleaving group substituents on rate and mechanism in aminolyses of 2,4-dinitrophenyl X-substituted benzoates.
- I. Um, K. Kim, Hye-Ran Park, M. Fujio, Y. Tsuno
- Chemistry, Medicine
- The Journal of organic chemistry
- 5 May 2004
Second-order rate constants have been measured for the reactions of 2,4-dinitrophenyl X-substituted benzoates (1a-f) with a series of primary amines in 80 mol % H(2)O/20 mol % DMSO at 25.0 +/- 0.1… Expand
The Yukawa-Tsuno Relationship in Carbocationic Systems
Publisher Summary This chapter deals with reactions involving carbocationic transition states, in most cases forming intermediates having carbocationic centers at the conjugative position in the side… Expand
Effect of amine nature on reaction rate and mechanism in nucleophilic substitution reactions of 2,4-dinitrophenyl X-substituted benzenesulfonates with alicyclic secondary amines.
- I. Um, S. Chun, Ok-Mi Chae, M. Fujio, Y. Tsuno
- Chemistry, Medicine
- The Journal of organic chemistry
- 6 April 2004
Second-order rate constants have been measured for reactions of 2,4-dinitrophenyl X-substituted benzenesulfonates with a series of alicyclic secondary amines. The reaction proceeds through S-O and… Expand
Ion Pairs in the Solvolysis of Secondary Systems. Salt Effect, 18O-Labeling, and Polarimetric Studies of 1-(4'-Tolyl)-2,2,2-trifluoroethyl Tosylate
- A. D. Allen, M. Fujio, +4 authors Ken-ichi Yatsugi
- Chemistry
- 1 September 1995
Theoretical studies on empirical structure–reactivity relationship: the Yukawa–Tsuno equation
- K. Nakata, M. Fujio, K. Nishimoto, Y. Tsuno
- Chemistry
- 1 June 2003
The substituent-dependent stabilization energies (δ X ΔE) of a series of α,α-R 1 R 2 benzyl cations were determined by means of ab initio calculation at the MP2/6-31G*//RHF/6-31G* + ZPE (scaled… Expand
Dynamics for reaction of an ion pair in aqueous solution: reactivity of carboxylate anions in bimolecular carbocation-nucleophile addition and unimolecular ion pair collapse.
- Y. Tsuji, T. Mori, J. Richard, T. L. Amyes, M. Fujio, Y. Tsuno
- Medicine, Chemistry
- Organic letters
- 27 March 2001
[reaction: see text]. The sum of the rate constants for solvolysis and 18O-scrambling of 4-MeC6H4(13)CH(Me)18OC(O)C6F5 in 50/50 (v/v) trifluoroethanol/water, k(solv) + k(iso) = 1.22 x 10(-5) s(-1),… Expand
Theoretical study of substituent effects on gas‐phase stabilities of benzylic anions
- K. Nakata, M. Fujio, K. Nishimoto, Y. Tsuno
- Chemistry
- 1 November 2010
The substituent effects on the relative gas-phase stabilities of 16 kinds of benzylic anion systems were determined theoretically using proton transfer reactions. The energies and geometries of… Expand
AB INITIO MO STUDY OF BENZYLIC CATIONS. PART 3. PROTONATED BENZOYL DERIVATIVES
- K. Nakata, M. Fujio, M. Mishima, Y. Tsuno, K. Nishimoto
- Chemistry
- 1 December 1998
The β-Silicon Effect. III. Substituent Effects of the β-Si-Aryl Moiety in the Solvolysis of 1-Aryl-2-(aryldimethylsilyl)ethyl 3,5-Dinitrobenzoates
- M. Fujio, Md. Ashadul Alam, Yuzo Umezaki, K. Kikukawa, R. Fujiyama, Y. Tsuno
- Chemistry
- 13 December 2007
Solvolysis rates of 2-[dimethyl(X-phenyl)silyl]-1-(Y-phenyl)ethyl 3,5-dinitrobenzoates were determined conductimetrically in 60% (v/v) aqueous ethanol. The effects of substituents X in the… Expand
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