- Synthesis and group 9 complexes of macrocyclic PCP and POCOP pincer ligands
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The synthesis of macrocyclic variants of commonly employed phosphine-based pincer (pro)ligands derived from meta-xylene (PCP-14) and resorcinol (POCOP-14) is described, where the P-donors are trans-substituted with a tetradecamethylene linker. The former
- Chaplin, Adrian B.,Gyton, Matthew R.,Leforestier, Baptiste
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p. 2087 - 2101
(2020/02/26)
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- Method for preparing 4-n-butyl resorcinol by one-pot method
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The invention discloses a method for preparing 4-n-butyl resorcinol by a one-pot method, and belongs to the field of cosmetic intermediate synthesis. The method comprises the following steps of: reacting resorcinol serving as a raw material with an alkali in n-butyl alcohol to form monophenol salt, reacting the monophenol salt with a Lewis acid by a dehydration one-pot method, performing acidolysis to obtain a crude product, and recrystallizing to obtain the 4-n-butyl resorcinol. The method is simple and convenient to operate, mild in condition, low in cost and high in yield, the purity of theobtained product can reach 99.0% or above, and the method has a potential amplification prospect.
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Paragraph 0018-0020; 0027-0032; 0036-0038
(2020/02/27)
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- Process for preparing dibasic salts of bisphenols
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The present invention discloses a process for preparing dibasic salt of bisphenol from bisphenol and alkali, wherein the bisphenol and the alkali are reacted in a reaction medium consisting of an organic solvent or an aqueous inorganic salt solution, and then through filtration, a highly pure dibasic salt of bisphenol is directly obtained at a yield of higher than 90%.
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Page/Page column 4
(2008/06/13)
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- 2-[16-(3-fluoro-5-trifluoromethyl-pyridinyl-2-oxy)-3-nitro-phenoxy]-propionic acid derivatives, herbicidal compositions containing same and herbicidal method of use
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Novel compounds, e.g., N-methanesulfonyl 2-((5-(3-fluoro-5-(trifluoromethyl)-2-pyridinyl)oxy)-2-nitro-5-phenoxy)propionamide are selective herbicides useful for controlling weeds in valuable crops.
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- O-alkoxy- and alkylthiophenyl carbamates
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This invention discloses new chemical compounds of the formula STR1 wherein R1 is selected from the group consisting of hydrogen, alkyl and alkenyl; R2 is selected from the group consisting of alkyl, alkenyl, cycloalkyl and STR2 WHER
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