Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.
综述了二碘化钐在分子内环化反应中的应用。
Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.
综述了二碘化钐在分子内环化反应中的应用。
Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.
以苯酰氯为原料,经酰化,还原,环合等反应合成左旋西替利嗪盐酸盐,反应总收率为8.05%。
Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.
方法以素为起始原料,经水解、乙酰化、环酸酯化、氧化、脱酸酯化、酰化、环酸酯化和环合等反应合成目标化合物。
N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.
以邻氯苯酸和对乙氧苯胺为原料,经过胺的苯化、二芳胺的环化、N-烷化、硫代化反应合成了N-丁-2-乙氧硫代吖啶酮。
This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.
讨论了以草酸二乙酯为原料,经过莱森缩合、环合、解反应合成5异唑3酰胺工艺的改进。
In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.
以苯酐和取代苯为原料,经过乙酰化、水解及环合反应,合成了2-氯蒽醌和2-蒽醌,并对影响收率的工艺条件进行了研究。
Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.
本文研究了三氯化钛水溶液作用下,邻硝苯胺与1,2-二酮在碱性介质中分子间的成环反应,提供了一个方便地合成取代喹喔啉类化合物的方法。
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