苯醌基 的英文怎麼說
中文拼音 [běnjī]-
Organic dyes related in this review included the following categories, the triphenymethanes, the azo dyes, the phthalocyanines, the hydroxyanthraguinones and etc ( 58 ref. citd )
文中沙及的有機染料主要有：三苯甲烷類、偶氮類、酞菁類及羥基蒽醌類等（引用文獻58篇） 。A facile method for the preparation of 10 - arylmethylene anthrone is reported. when anthrone react with aryl aldehyde in the presence of pyridine by using xylene as the solvent, besides 10 - arylmethylene anthrone derivatives we found other oxygenated anthrone which have not been reported. physical methods shows that the oxygenated anthrone is anthraquinone, and the anthraquinone cannot be removed from the condensed products by recrystallization with solvents. an effective method of getting ride of anthraquinone is sublimation by heating
以蒽酮和芳香醛為原料，二甲苯為溶劑，吡啶催化法制取10 -芳香基甲叉基蒽酮.發現其生成物中除含有目標化合物10 -芳香基甲叉基蒽酮外，還含有部分文獻中沒有報道的蒽酮氧化物，經物理方法確定其為蒽醌.該化合物不能用溶劑重結晶的方法將其從縮合產物中除去，有效的分離方法是升華Manufacturer of pyranine dyes for the food, cosmetic, pharmaceutical, and personal care industries, as well as a black dye for inkjet printers
-生產還原染料分散染料染料中間體，苯繞蒽酮， 1 ， 4 -二氨基- 2 ， 3 -二氯蒽醌，還原黃，還原紫，還原棕，還原咔嘰，還原大紅，還原灰，分散紫Abstract : this is a review with 27 references on the chemical constituents ( volatile and non - volatile components ) monoterpenes, sesquiterpenes, phenylpropanes, flavonoid, quinonoids, alkaloids, cholines and amino acids, etc. of rhizoma acori, including rhizoma acori graminei and rhizoma acori calami
文摘:菖蒲為較常用中藥，具有多種藥理及生理作用.含有單萜、倍半萜、苯丙素等揮發油成分及黃酮、醌、生物堿、膽堿、有機酸、氨基酸、糖等非揮發性成分.本文就此對兩種菖蒲石菖蒲和水菖蒲的化學成分研究狀況作一綜述.以對其進行全面的研究與開發The product chorismate of this pathway is precursor to the synthesis of the aromatic amino acids phenylalanine, tyrosine, and tryptophan as well as other essential aromatic secondary metabolites such as ubiquinone, menaquinone and vitamin k. phosphoenolpyruvate and shikimate 3 - phophate are converted to 5 - enolpyruvlshimimate - 3 - phosphate and phosphate
芳香族氨基酸苯丙氨酸、酪氨酸、色氨酸和其它一些必需代謝物如泛醌、維生素k2類、維生素k的起始物是莽草酸途徑所產生的分枝酸。Formation of ctc by 2 - chloro - 5 - methoxyl - p - benzoquinone and tertiary amines in acetonitrile
甲氧基對苯醌在乙腈中形成電荷轉移絡合物的研究Influence of cation concentration on 7, 7, 8, 8 - tetracyanoquinodimethane in polyelectrolyte by using in - situ microscopic fourier transform infrared spectroelectrochemistry
四氰基苯醌二甲烷現場顯微紅外光譜的影響Hydroxyquinol triacetate was prepared from p - benzoquinone by 1, 4 - addition reaction with acetic anhydride and then 6, 7 - dihydroxy coumarin was synthesized from it by hydrolyze and cyclization in concentrated sulfuric acid. then 6, 7 - dimethoxy coumarin was synthesized by methylating from 6, 7 - dihydroxy coumarin with an overall yield of 74. 4 %. the procedure was practical. its structure was confirmed by ir and 1hnmr
對苯醌與乙酸酐經1 ， 4 -加成生成1 ， 2 ， 4 -苯三酚三乙酸酯，然後與蘋果酸反應經水解、環合反應得6 ， 7 -二羥基香豆素，再經甲基化得到6 ， 7 -二甲氧基香豆素，總收率為74 . 4 % ，整個過程反應條件溫和，操作方便，適合工業生產的要求，對產品結構進行了ir和1hnmr表徵。分享友人