نتایج جستجو برای: phenol ortho alkylation

تعداد نتایج: 27115  

2011
Kaushik Chakraborty

To determine the effect of inorganic N fertilizer on the incidence of yellow stem borer (YSB), Scirpophaga incertulas Walker and on grain yield, yield attributes and bio-chemical characters of local paddy cultivar Tulaipanji, a field experiment for three consecutive years (2007-2009) was carried out by randomized block design in pesticide untreated field. Treatments comprised of seven different...

Journal: :Anticancer research 2009
Yukio Murakami Hiroaki Ishii Syuhei Hoshina Naoki Takada Ayako Ueki Shoji Tanaka Yoshinori Kadoma Shigeru Ito Mamoru Machino Seiichiro Fujisawa

The anthropogenic substance 4,4'-biphenol and its analogues are estrogenic and cytotoxic. It has been previously found that synthesized ortho-dimers of phenolic compounds possess potent antioxidative and anti-inflammatory activity. To clarify the relationships between radical-scavenging and anti-inflammatory activities, the radical-scavenging activities of 4,4'-biphenol, 2,2'-biphenol and pheno...

Journal: :Journal of the American Chemical Society 2005
Jennifer Scott Sandro Gambarotta Ilia Korobkov Peter H M Budzelaar

The alkylation of the Brookhart-Gibson {2,6-[2,6-(i-Pr)2PhN=C(CH3)]2(C5H3N)} FeCl2 precatalyst with 2 equiv of LiCH2Si(CH3)3 led to the isolation of several catalytically very active products depending on the reaction conditions. The expected dialkylated species {2,6-[2,6-(i-Pr)2PhN=C(CH3)]2}(C5H3N)Fe(CH2SiMe3)2 (2) was indeed the major component of the reaction mixture. However, other species ...

Journal: :Berichte der deutschen chemischen Gesellschaft 1887

A. Nejad Ebrahimi A. Zolfaghari Sharak F. Aghazadeh S. A. Mousavi

A genetic algorithm is used to optimize the modified benzene alkylation process. Based on the previous studies, the modified process increases ethylbenzene selectivity and decreases energy consumption at the same time. The inlet ethylene flow rate of each alkylation reactor is optimized in order to reduce the chance of transalkylation reactions but increase ethylbenzene selectivity. The byprodu...

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