1) 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)。
2) 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%。
3) 3 dipolar cycloaddition
3偶极环加成反应
4) 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。
6) dipolar cycloaddition
偶极环加成
1.
A series of heterospiro compounds were synthsized by 1,3 dipolar cycloaddition of nitrile oxides to 4,4 methylene 1 methylpiperidine.
氧化腈与4,4-亚甲基-1-甲基哌啶的1,3-偶极环加成反应生成了杂螺[4。
2.
Condensation of diamine with quinoxaline-2-carboxaldehyde or 2-phenyl-1,2,3-triazole-4-carboxa-ldehyde gave a series of new bis-Schiff bases,which then were reacted with mercaptoacetic acid to afford bis-thiazolidinone derivatives by 1,3-dipolar cycloaddition.
以喹喔啉-2-甲醛或2-苯基-1,2,3-三唑基-4-甲醛为原料与二胺缩合制备了一系列新的双席夫碱,再分别与巯基乙酸进行1,3-偶极环加成反应得到双-噻唑啉酮衍生物,其组成及结构经元素分析、IR和1HNMR、MS测试技术得以确证。
补充资料:能别不极成
【能别不极成】
(术语)宗法九过之一。凡立宗,所别(声),能别(无常)之言,必用立敌共许者,是以能别所别之言为宗之所依,非为宗体(所别能别分离者为宗依,所别能别关连者为宗体)而立敌所诤者,在于宗体,不在依于宗者故也。然宗依已举不共许之言,则于此处既为立敌之诤,故名之为能别不极成,所别不极成之过。例如耶苏教者对于佛教者而言:“人(所别),永眠(能别)。”永眠之言,为佛者所不许,则是能别不极成也。
(术语)宗法九过之一。凡立宗,所别(声),能别(无常)之言,必用立敌共许者,是以能别所别之言为宗之所依,非为宗体(所别能别分离者为宗依,所别能别关连者为宗体)而立敌所诤者,在于宗体,不在依于宗者故也。然宗依已举不共许之言,则于此处既为立敌之诤,故名之为能别不极成,所别不极成之过。例如耶苏教者对于佛教者而言:“人(所别),永眠(能别)。”永眠之言,为佛者所不许,则是能别不极成也。
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