1) 3 dipolar cycloaddition
3偶极环加成反应
3) dipolar-cycloaddition reaction
偶极环加成反应
1.
The triazole compounds(7b and 8b) were obtained by dipolar-cycloaddition reaction from 3b and some carbonyl nucleophilic reagents containing active methylene.
合成了手性叠氮2(5H)-呋喃酮化合物(3a～3d);3b与含活泼亚甲基化合物发生偶极环加成反应,合成了带手性丁烯内酯的1,2,3-三唑化合物(8b和8b)。
4) 1,3-dipolar cycloaddition reaction
1,3-偶极环加成反应
1.
The influences of the frontier molecular orbitals and optimized geometry of the precursor on the reaction rates and endo/exo selectivity are discussed,and a reasonable explanation about the steroselectivity of 1,3-dipolar cycloaddition reaction in the presence of copper-(Ⅱ)-or.
用理论计算方法研究了Cu(Ⅱ)和Zn(Ⅱ)-手性二恶唑啉络合物与N-苄基-α-乙氧酰基硝酮形成的反应前驱体与乙基乙烯基醚的1,3-偶极环加成反应过程。
2.
The effect of the complexes of copper(II) or zinc(II) with 2,2-bis[2,2′-4(S)-benzyl-4,5-dihydrooxazole]propane catalysis on the 1,3-dipolar cycloaddition reactions of diphynyl nitrone with electron-rich ethyl vinyl ether under various reaction conditions is determined.
以手性双噁唑啉2,2-(2,2′-4(S)苄-基-4,5-二氢噁唑啉基)丙烷为配体,研究了它与铜或锌的络合物对二苯基硝酮与富电子烯烃乙烯基乙醚的1,3-偶极环加成反应的催化效果,并考察了不同反应条件对催化效果和产物立体选择性的影响。
3.
2%,1-Benzyl-5-phenyl-1,2,3-triazole was prepared through 1,3-dipolar cycloaddition reaction with benzylazide and phenylacetylene,and the yield was 26%.
苯乙炔和叠氮苄,通过1,3-偶极环加成反应制得1-苄基-5-苯基-1,2,3-三氮唑,收率26%。
5) 1,3-dipolar cycloaddition reactions
1,3-偶极子环加成反应
1.
On the basis of this, 1,3-dipolar cycloaddition reactions were studied using imine esters as the starting marerials.
在此基础上以氨基酸酯亚胺类化合物为原料主要研究了1,3-偶极子环加成反应。
补充资料：小成
1.初步形成。 2.谓先成八卦﹐引申而为六十四卦。故八卦亦名"小成卦"。 3.略有成就。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条