苯酰化 的英文怎麼說
中文拼音 [běnhuà]-
The chloromethylation of acetanilide and its derivatives in a polyformaldehyde - hc1 system gave n - substituted products as the major product
摘要?察了乙酰苯胺及其衍生物在多聚甲醛鹽酸體系下的氯甲基化反應，結果表明， n -氯甲基化反應的產物是主要產物。Manufacturer of fine chemicals, and pharmaceutical and agrochemical intermediates, offering a small but diverse range of predominantly aromatic chemicals. located in shanghai and lanxi, china
-生產芐胺，鄰氯苯甲酰氯，對氯苯甲酰氯， n甲基芐胺， -苯乙胺，糠胺，四甲基己二胺，延遲催化劑，聚氨酯催化劑，農藥中間體Silica pigment, benzene parazolone, oxalic acid catalyzer, accelerant, catalyst, deposit carbon powder, starch, paraacetaminophenetol - sulfonamide, sodiumpara - aminosalicylate ( pasna ), dalmato, p - thephalic acid, diethylbenzene - amine, titanium dioxide, acticarbon, sodium fluosilicate, fluorite, by - thiamine, silica gel powder, synthetic resin, sulfonic acid, polypropylene resin, aureomycin, pyrosodium silicate, gluchlorine acid coffee grounds, glucose, sodium sulfate, sulfide mineral, guound phosphate rock, bb, p. v. c.,
M 、觸媒、沉澱炭粉、對乙酰氮基苯磺酰氨、對氨基水楊酸、哆耳瑪托、對苯二酸、二乙苯銨、二氧化鈦、活性碳、氟硅酸鈉、氟石礦、副產硫銨、硅膠粉未、合成樹脂、磷酸鈣、聚丙烯樹脂、金黴素、偏硅酸鈉、糠氯酸咖啡渣、口服葡萄糠、硫酸鈉、硫化礦、磷礦粉、蘭bb 、 p . vThis product had strong property of separation and recovery of organic dissolvent and vapour, such as ether, ketone, alcohol, thf, dichlorotetra, chlorolform, narkosid, carbon disulfide disulphide, carbon, benzol, gasoline oil, etc
對醚類、酮類、醇類、四氫呋喃、二氯四烷、三氯甲烷、三氯乙烯、二硫化碳、苯、甲苯、甲酰、汽油及含汞、含氟烴類有機溶劑和有機蒸氣有很強的分離、回收性能。Initiation is caused by radicals produced from azobisisobutyronitrile, benzoyl peroxide or perester decomposition.
鏈引發是由偶氮二異丁腈，過氧化苯甲酰或過氧酯分解生成的自由基所引起。Methods of determination for benzoyl peroxide in wheat flour
小麥粉中過氧化苯甲酰的測定方法Food additive - diluted benzoyl peroxide
食品添加劑稀釋過氧化苯甲酰A study on the determination of benzoyl peroxide in wheat flour by hplc
高效液相色譜測定麵粉中過氧化苯甲酰Preparation and ageing of column for determination of benzoyl peroxide
測定過氧化苯甲酰所需色譜柱的制備及老化方法研究Acetyl benzoyl peroxide
乙酰過氧化苯甲酰Methods cefsulodin was prepared, taking phenylacetic acid as the starting material, followed by sulfonation, resolution, acylation, amidation and substitution, in 5 steps totally
方法以苯乙酸為原料，經磺化、拆分、酰化、酰胺化和取代五步反應合成頭孢磺啶。A super acylation catalyst, 4 - dimethylamino pyridine ( dmap ), was prepared and used to synthesize cholesteryl ester compounds. four kinds of cholesteryl ester compounds such as cholesteryl p - alkoxyl benzoate, cholesteryl dicarboxylate, cholesteryl lumequeic ester and coattail - like cholesteryl ester were synthesized by acylation method and super acylation catalyst method. chemical structures and liquid crystal behaviors of the synthesized samples have been characterized by using element analysis, ftir, dsc and polarized microscopy with a hot stage
本文合成了高效酰化催化劑4 -二甲基氨基吡啶（ 4 - dimethylaminopyridine ， dmap ） ，採用酰氯化法和高效酰化催化劑法分別合成了對烷氧基苯甲酸膽甾醇酯、對稱脂族二羧酸膽甾醇酯、烯酸膽甾醇酯及燕尾型膽甾醇酯四類膽甾醇酯衍生物，並進行了化學結構和液晶性能的表徵。Acetylation between alcohol and benzoyl oxide was carried out using znbr2 as a lewis acid catalyst in solvent - free condition. some structures were characterized by nmr and ir
以溴化鋅為催化劑，在無溶劑條件下實現了醇與苯甲酸酐的酰化反應，部分產物經nmr和ir表徵。Methods linezolid was prepared by the steps of substitution, reduction, acylation and condensation with biacetyl compond from the starting material 3, 4 - difluoronotrobenzene
方法以3 ， 4 -二氟硝基苯為原料，經取代、還原、酰化、再與側鏈雙乙酰化合物縮合得到目標化合物。Poly(vinyl alcohol)has been protected against radiation by benzalation and benzoylation.
聚乙烯醇的耐輻解可通過芐叉化和苯甲酰化提高。Horizontale road marking. markings applied on the roads. benzoyl peroxide determination
路面水平標記.馬路標記.過氧化苯酰的測定The gel by sodium alcoholate method, added benzoylacetone, have the obvious uv absorption peaks at 265nm and 337nm respectively. when the gel was placed in air, the chelate did n ' t have change. the absorption peak decreased until disappeared when the films were irradiated by the ultraviolet light with the relevant wavelength, which indicated that the films were obviously photosensitive
（ 4 ）通過三種方法制備感光性的sno _ 2 ： sb （ ato ）溶膠，採用醇鈉法，添加苯酰丙酮制備的二氧化錫凝膠膜，在265nm和337nm處存在明顯吸收峰，空氣中放置，所形成的螯合物不發生變化，用相應波長的紫外光照射時，這個吸收峰會減小直至消失，表明薄膜具有良好的感光性。Abstract : an imidazole - catalyzed acylation method of phthalic anhydride is applied to the determination of hydroxyl values of reinforcing agent is211. the analytical error is 5. 0 10 - 3. the relative standard deviation of the method is less than 0. 04 and its coefficient of variation is not more than 5. 0 10 - 3. hydroxyl values determined in different batch samples meet the design requirement completely. this method is rapid and simple, it is adaptable to conventional analysis
文摘:以咪唑催化鄰苯二甲酸酐酰化的方法測定增強劑is211的羥值，準確度高，分析誤差為5 . 0 10 - 3 ；方法精密度好，標準偏差小於0 . 4 ，變異系數不大於5 . 0 10 - 3 ，測定不同批號試樣的羥值完全符合商標值，方法快速、簡便，適用於常規分析。Dihydroxybenzyl alcohol is synthesized from 3, 5 - dihydroxybenzoic acid by acylation and reduction by sodium borohydride reagent systems, which gives a convenient synthetic method
摘要以3 ， 5 -二羥基苯甲酸為原料，經酰化、硼氫化鈉還原體系還原，合成了3 ， 5 -二羥基苯甲醇。Aldononitrile acetates and alkaline nitrobenzene oxidations were used to analyze the change of structuia1 polysaccharides and composition of lignin in 80 % ethanol - extracted rice straw treated with sodium hydroxide, ammonium bicarbonate, or urea
摘要以氫氧化鈉、碳酸氫銨和尿素處理的稻草為研究對象，採用糖腈乙酰酯法和堿性硝基苯氧化法，分別測定了化學預處理前後稻草用80 %乙醇浸提殘渣中結構性多糖和木質素組分的變化。分享友人