P−S Bond Scission by Bis(cyclopentadienyl)molybdenum(IV) Dichloride, Cp2MoCl2(aq):  First Documented Example of an Organometallic Complex Hydrolyzing Thiophosphinates

2005 ◽  
Vol 44 (15) ◽  
pp. 5537-5541 ◽  
Author(s):  
Louis Y. Kuo ◽  
Angela P. Blum ◽  
Michal Sabat
2021 ◽  
pp. 130086
Author(s):  
Sheng Huang ◽  
Bang-Feng Zheng ◽  
Zi-Yuan Tang ◽  
Xiu-Qiong Mai ◽  
Ting Ouyang ◽  
...  

2020 ◽  
Vol 11 (6) ◽  
pp. 1599-1606 ◽  
Author(s):  
Adam H. Day ◽  
Martin H. Übler ◽  
Hannah L. Best ◽  
Emyr Lloyd-Evans ◽  
Robert J. Mart ◽  
...  

Visualising a c-Myc nuclear localisation signal peptide using an organometallic complex.


1994 ◽  
Vol 72 (1) ◽  
pp. 218-226 ◽  
Author(s):  
Julian M. Dust ◽  
Erwin Buncel

To elucidate the reactivity of super-electrophiles such as 4,6-dinitrobenzofuroxan as compared to normal electrophiles such as 1,3,5-trinitrobenzene, reaction of isopropoxide ion (iPrO−) with a series of ambident super-electrophiles was studied by 400 MHz 1H nuclear magnetic resonance spectroscopy. The 2-(nitroaryl)-4,6-dinitrobenzotriazole 1-oxides, 1–3, possess both a super-electrophilic (C-7) site and a normal electrophilic (C-1′) site. Nucleophiles can demonstrate selectivity for attack at C-7, which leads to formation of persistent anionic σ-adducts (Meisenheimer complexes), as compared to C-1′, which leads to N-2:C-1′ bond scission. The most reactive substrate, 2-(2′,4′,6′-trinitrophenyl)-4,6-dinitrobenzotriazole 1-oxide (Pi-DNBT, 1) was found to be the least selective substrate in C-7 adduct formation, while 2-(2′,4′-dinitrophenyl)- and 2-(4′-nitrophenyl)-4,6-dinitrobenzotriazole 1-oxides (DNP-DNBT, 2, and NP-DNBT, 3, respectively) showed increasing selectivity towards iPrO−, in turn. These results are discussed on the basis of overall selectivity for C-7 adduct formation and the relative selectivity of iPrO− as compared to methoxide and tert-butoxide ions. The conclusions are illustrated using comparative energy profiles. In terms of pathways for decomposition of the adducts, the C-7 adducts decompose via dissociation back to substrate and nucleophile and, thence, through C-1′ adduct formation to the scission products. However, for 1, the C-7 adduct 1a has now been found to decompose to 7-isopropyl-2-picryldinitrobenzotriazole, 1c. The possible mechanism of this formal internal redox will be discussed.


2005 ◽  
Vol 24 (13) ◽  
pp. 3229-3232 ◽  
Author(s):  
Gaurav Bhalla ◽  
Jonas Oxgaard ◽  
William A. Goddard ◽  
Roy A. Periana

1991 ◽  
Vol 420 (1) ◽  
pp. 135-142 ◽  
Author(s):  
Massimo Di Vaira ◽  
Donella Rovai ◽  
Piero Stoppioni ◽  
Maurizio Peruzzini

2000 ◽  
Vol 10 (8) ◽  
pp. 1825-1828 ◽  
Author(s):  
Michael H. W. Lam ◽  
Derek Y. K. Lee ◽  
K. W. Man ◽  
Cindy S. W. Lau

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