Results 61 to 70 of about 4,469 (170)

Effect of Amine Nature on Reaction Rate and Mechanism in Nucleophilic Substitution Reactions of 2,4-Dinitrophenyl X-Substituted Benzenesulfonates with Alicyclic Secondary Amines

, 2018
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 C-O bond fission pathways competitively.
엄익환
core   +1 more source

Design, Synthesis, Biological Evaluation, and Structure–Activity Relationships of Substituted Phenyl 4-(2-Oxoimidazolidin-1-yl)benzenesulfonates as New Tubulin Inhibitors Mimicking Combretastatin A-4

, 2015
Sixty-one phenyl 4-(2-oxoimidazolidin-1-yl)benzenesulfonates (PIB-SOs) and 13 of their tetrahydro-2-oxopyrimidin-1(2H)-yl analogues (PPB-SOs) were prepared and biologically evaluated.
Marie-France Côté (1278744), Éric Petitclerc (1278756), Emmanuel Moreau (1278759), Lianhu Wei (1278753), Lakshmi P. Kotra (1278741), René C.-Gaudreault (1278747), Sébastien Fortin (1278738), Jacques Lacroix (1278750)   +7 more
core   +1 more source

Factors influencing S-O bond and C-O bond cleavages in the reactions of 2,4-dinitrophenyl X-substituted benzenesulfonates with various nucleophilic reagents

, 2018
Second-order rate constants have been measured spectrophotometrically for the reaction of 2,4-dinitrophenyl X-substituted benzenesulfonates with Z-substituted phenoxides in absolute ethanol at 25.0± 0.1 °C.
엄익환, 권동숙
core   +1 more source

(The) Effects of Alkali Metal Ions on Nucleophilic Substitution Reactions of Aryl Substituted Benzenesulfonates

, 1994
Sulfonyl-transfer 반응의 반응 메카니즘과 이 반응에서의 알카리 금속이온 효과를 살펴보기 위하여 다음과 같은 연구를 수행하였다. 즉, 25℃, absolute ethanol에서 aryl substituted benzenessulfonates (X-C_(6)H_(4)SO_(2)-OC_(6)H_(4)-Y)와 alkali metal ethoxides (EtO^(-)M^(+)) 및 alkali metal oximates (Ox^(-)M ...
이석주
core   +1 more source

Kinetic studies for nucleophilic substitution reaction of 2, 4 dinitrophenyl X-substituted benzenesulfonates and related compounds

, 2001
벤조에이트와 술포네이트의 친핵성 치환반응에 대한 이차반응 속도상수를 분광학적으로 측정하였다. Y-substituted phenyl X-substituted benzoates와 hydroxide의 반응에서 아실 치환기 X의 전자적 성질과는 무관하게 이탈기의 치환기 Y에 대한 Hammett 그림은 모두 σ°상수와 좋은 상관관계가 얻어졌다. 이것은 속도결정단계의 전이상태에서 이탈기의 이탈이 진행되지 않았다는 것을 의미하기 때문에, 본 반응은 2단계 반응으로
홍진영
core  

(A) Study on Nucleophilic Substitution Reactions of 2,4-Dinitrophenyl Substituted Benzenesulfonates with Aryloxides

, 1994
Sulfonyl transfer 반응은 생화학적으로 중요한 acyl transfer반응의 일종이다. 본 연구에서는 sulfonyl transfer 반응의 반응성과 반응 메카니즘을 규명하기 위하여 2,4-dinitrophenyl benzenesulfonate류(1,X-C_(6)H_(4)SO_(2)-OC_(6)H_(3)(NO_(2))_(2))와 aryloxide(Z-C_(6)H_(4)O^(-))와의 친핵성 치환반응을 25℃, absolute ...
金楨珠
core   +1 more source

Microbial Utilization of Benzenesulfonic Acid

Agricultural and Biological Chemistry, 1972
OKI, Toshikazu, KITAI, Atsuo, KUSUMOTO, Masahiro, OZAKI, Asaichiro   +3 more
openaire   +1 more source

Quantitative Spatial Profiling of Antibody Delivery and Target Engagement Using Optically Labeled Antibodies. [PDF]

J Nucl Med
Tanaka H, Vasiukov G, Grisham CJ, Kazi M, Gowrishankar S, Rosenthal EL.   +5 more
europepmc   +1 more source

การสังเคราะห์และการหาโครงสร้างของสารประกอบ Aryl Ethenylpyridinium Benzenesulfonates และสารคล้านคลึง

, 2006
Thesis (M.Sc., Organic Chemistry)--Prince of Songkla University ...
Boonwasana Jindawong
core   +1 more source

Polypyrrole Doped with Alkyl Benzene Sulphonates.

, 2002
The properties of polypyrrole (PPy) are to a large extent determined by the condition of synthesis and especially by the counterion incorporated as dopant during synthesis. In this work, PPy doped with different alkyl benzenesulfonates are compared.
Skaarup, Steen, Bay, Lasse, Mogensen, Naja, Sommer-Larsen, Peter, West, Keld   +4 more
core