carboxylic acids 中文意思是什麼
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One exception is the decarboxylation of aromatic carboxylic acids.
芳香羧酸進行脫羧反應是一個例外。 -
Decarboxylase an enzyme that catalyzes the decarboxylation of carboxylic acids, including the conversion of amino acids to amines
脫羧酶：能夠催化羧酸進行脫羧反應的酶，包括氨基酸轉化為胺的反應。 -
In order to find replacer for metronidazole and drug selection. some diesters or esters of acids containing nitrogen with metronidazole were designed and synthesized, which have difference in water - solubility. metronidazole was reacted with the corresponding amino or imino multi - carboxylic acid compounds in the presence of acetic anhydride or thionyl chloride or dcc. the intermediate of nitrilotriacetic acid with ac
為尋找羥乙基甲硝唑的替代物，分別採用酸酐法酰氯法或dcc法，將氨基羧酸與羥乙基甲硝唑反應，得到5個親水性不同的單酯或二酯，用ms譜確證了次氨基三乙酸與乙酸酐反應的中間物，並對得到的酯的 -
Abstract : a novel enzymatic reaction ? ammonolysis was introduced in thenineties. this reaction not only provides a synthetically useful and mild alternative method for the synthesis of amides, but also can be used for the kinetic resolution of chiral alcohols or chiral carboxylic acids. in addition to enantioselective hydrolysis, esterification and transesterification, ammonolysis also shows high enantioselectivity in the resolution of racemates
文摘:酶促氨解反應是20世紀90年代中期發現的一種新型反應，在脂肪酸酰胺的合成、手性藥物（手性酸及手性醇等）的拆分中顯示出巨大的應用潛力，是除立體選擇性水解、酯化、轉酯反應之外的另一具有較大開發應用前景的酶促新型反應。 -
They were used as efficient lewis acid catalysts for esterification reactions of carboxylic acids with alcohols to afford corresponding saturated esters with 87 % ~ 98 % yields and unsaturated and tertiary ones with 90 % ~ 94 % and 54 % ~ 68 % yields, respectively
結果表明，該有機錫化合物是合成酯的優良催化劑，產品收率高，飽和一元羧酸酯的收率為87 % ~ 98 % ，對不飽和羧酸酯和空間位阻大的叔醇酯也能得到較滿意的收率，分別為90 % ~ 94 %和54 % ~ 68 % 。 -
An enzymatic synthesis and composition of oligomers and co - oligomers comprised of. alpha. - hydroxy carboxylic acids and. alpha. - amino acids or peptides is disclosed
一種低聚體和由-羥基羧酸和-氨基酸或肽組成的副低聚體的酶合成成分。 -
Amino acids contain both acids ( carboxylic acids ) and bases ( amino group ), so they react sith both acids and bases
氨基酸包含酸（羧酸）和堿（氨基團）所以它既可以與酸反應也可以和堿反應。 -
Specialized in supplying both enantiomers of a wide variety of chemicals, including amines and amino acids, alcohols, carboxylic acids, and sulfinamides. new jersey, us
-生產銷售醫藥農藥中間體吲哚衍生物，如吲哚啉， 5 -溴吲哚， 5 -硝基吲哚等，包括公司簡介產品介紹等 -
Amino acids compounds containing both carboxylic acid and amino groups in their molecules
氨基酸：在其分子中包含羧酸和氨基基團的化合物。 -
Producer of organic intermediates in china. products include derivatives of carboxylic acids, esters, ethers, alcohols, nitriles, and aromatics, including many brominated and chlorinated chemicals
-專業生產phba cbz - l - haba甲基巰基四氮唑l - haba等醫藥中間體，其中還包括公司簡介及其聯系方法等內容。
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