WebA catalyst system for producing ethylene copolymers in a high temperature solution process at a temperature greater than 100° C., the catalyst system comprising (i) a metallocene … WebSep 8, 2024 · R 2 is a hydrogen atom, an optionally substituted alkyl group (preferably a methyl group or a trifluoromethyl group), an optionally substituted aryl group, or an optionally substituted represents a heteroaryl group which may be Two or more R 2 may be the same or different. Ar represents an aromatic ring group. Ar is preferably a benzene …
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WebAn electrochemical oxidation process of optionally substituted toluene dissolved in an alcohol in the presence of a conducting salt is described wherein the electrochemical oxidation is carried out at a current density of 0.1 to 50 A/dm 2 using oxidation-resistant anodes. According to the disclosure, the reaction product can be distillatively worked up … WebMany translated example sentences containing "optionally substituted" – French-English dictionary and search engine for French translations. optionally substituted - French … fns national directory
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WebNov 6, 2013 · A compound of formula (I): (I) wherein Y is, Z is OR10, NR11R11SR11, S(0)R11S02R11, R10is H, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted heterocyclyl, CO-R11, or a … WebSep 1, 2024 · The TiCr 2 alloy of C14-type possess a hexagonal structure, and the cell molecular formula is Ti 4 Cr 8 [], as shown in Fig. 1 (a).The Mn atoms were considered to optionally substitute for the Cr sites of TiCr 2 to form the ternary intermetallic TiCr 2-x Mn x [].Therefore, the total number of possible structures composed of Ti 4 Cr 8-x Mn x is 2 8 … WebSep 7, 2024 · "Amino" means a group having the formula -Nc(H)p(R')q, wherein each R' is independently an alkyl, alkenyl, alkynyl, aryl, or alkaryl group, any of which One may be optionally substituted, p+q is 2 or 3, and c represents the charge on the nitrogen atom, which is 0 or 1+. Typically, each R' is an alkyl group. f.n. smith corporation