نتایج جستجو برای: step synthesis
تعداد نتایج: 659472 فیلتر نتایج به سال:
Improvements in the two-step synthesis of 1,1,1,3,3,3-hexafluoro-2- (fluoromehoxy)propane (Sevoflurane) that result in the product cost reduction, safety level enhancement and positive environmental impacts are described. This process consists of chloromethylation reaction of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) followed by a halogen-exchange fluorination. This is the first synthesis of Sev...
Improvements in the two-step synthesis of 1,1,1,3,3,3-hexafluoro-2- (fluoromehoxy)propane (Sevoflurane) that result in the product cost reduction, safety level enhancement and positive environmental impacts are described. This process consists of chloromethylation reaction of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) followed by a halogen-exchange fluorination. This is the first synthesis of Sev...
The purpose of this study was to develop a framework for the organizational capacity of academic centers. The research method was the Seven-level qualitative Meta-synthesis of Sandelowski and Barros (2007). In the first step, the research question was raised about the development of the academic capacity framework, according to which the meta-synthesis team members were identified. In the secon...
The amino acids synthesis from elementary precursors in abiotic conditions is traditionally described according to the Strecker reaction, thoroughly invoked justify observation of extraterrestrial samples and their emergence primordial Earth. To this day, however, a quantitative microscopic description mechanism, thermodynamics, kinetics multistep reaction still lacking. In present work we tack...
abstract in first part of this project, the use of a new and biguanid-like catalyst supported on silica as a recyclable catalyst provides a new route for the synthesis of a variety of arylalkylidene rhodanine derivatives through knoevenagle reaction in at present of solvent at room temperature. rhodanine derivatives and especially arylalkylidene rhodanines have proven to be attractive compound...
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