نتایج جستجو برای: sulfonates
تعداد نتایج: 475 فیلتر نتایج به سال:
The hydroboration of phenyl vinyl sulfide with catecholborane (HBcat) and pinacolborane (HBpin) has been examined with a number of rhodium complexes, all of which proceed with excellent regiocontrol in favour of the branched product PhSCH(B(OR)2)CH3. The corresponding linear product can be obtained exclusively in reactions employing [Cp*IrCl2]2 and HBcat. Catalysed hydroborations of (E)-2-(p-to...
A relatively simple shake-flask system for determining CO2 evolution was developed to assess the ultimate biodegradability by soil and sewage micro-organisms of chemicals which enter the environment. Linear alkylbenzene sulfonates (LAS) were used as model compounds to evaluate the method and were found to undergo substantial biodegradation in this dilute system. At the 30 mg/liter test concentr...
We developed new reaction-based probes for the dual signaling of fluoride ions. Selective fluoride-assisted deprotection of resorufin nosylate to generate resorufin fluorochrome was used for signaling. Resorufin nosylate exhibited selective colorimetric and fluorogenic signaling of fluoride ions in acetonitrile. The response from sulfide ions was effectively masked by using the TPEN-Cu(2+) comp...
چکیده ندارد.
The paper presents the results of research into biostability M-10 base oil samples with addition protective additives for various purposes which are a part earlier composition M-14В2 lubricating developed by us. It was established that despite different nature these (alkyl phenolates, dithiophosphates, sulfonates), all affected microorganisms. found introduction 0,25% α-phenyl-β-nitroethene pro...
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