15062-34-7Relevant articles and documents
Smith et al.
, p. 136,141 (1969)
Selective Bromination of β-Positions of Porphyrin by Self-Catalytic Behaviour of VOTPP: Facile Synthesis, Electrochemical Redox Properties and Catalytic Application
Maurya, Mannar R.,Prakash, Ved,Avecilla, Fernando,Sankar, Muniappan
, p. 1685 - 1694 (2021/05/03)
Oxidovanadium(IV) complex of β-octabromo-meso-tetraphenylporphyrin, {[VIVO(TPPBr8)], 2} was synthesized by self-catalytic oxidative bromination of meso-tetraphenylporphyrinatooxidovanadium(IV) {[VIVO(TPP), 1} in excellent yield under mild conditions at 25 °C and its structure was confirmed by single crystal X-ray study. UV-Vis and 1H NMR spectra further confirmed that the meso-phenyl rings are not brominated and thus emphasizes on the selectivity as well as synthetic importance of this catalytic method. In the presence of substrates e. g. phenol derivatives, 1 biomimics the vanadium bromoperoxidase (VBPO) enzyme and catalyses the oxidative bromination of substrates in water at 25 °C. Remarkably, 2 also catalyses the oxidative bromination of phenol derivatives under similar reaction conditions with very high turnover frequency (TOF) values (ca. 29 s?1) along with its recyclability. It was found that 2 showed superior catalytic performance as compared to 1 because of its electron deficient nature due to electron withdrawing bromo substituents and robust saddle shaped nonplanar structure (further supported by DFT studies).
A shan tiefen derivative and its synthetic method and application in pesticide
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Paragraph 0050-0053, (2019/07/08)
The invention relates to a shan tiefen derivative and its synthetic method and in pesticide application, especially in the application of the pesticide in the fungicide, which belongs to the technical field of agricultural chemicals. The invention solves the technical problem is to provide a new shan tiefen derivative and its synthetic method and in pesticide application, the structure of this compound is shown as formula I. This compound the structure is simple, novel, easy to synthesize, at the same time having fungicidal activity, the tomato alteso, zones all of tomato, cucumber wilt disease, magnaporthe grisea, galenical such important plant pathogenic fungi, have better bacteriostatic or bactericidal effect.