1) retro-1,3-dipolar cycloaddition
逆1,3偶极环加成
2) 1,3-dipolar cycloaddition
1,3-偶极环加成
1.
Development of complex in catalytic enantioselective 1,3-dipolar cycloaddition reactions of nitrones;
硝酮1,3-偶极环加成对映选择性配合物催化剂的研究进展
2.
Novel 4-β-D-allopyranosyloxy-α-chloro-benzaldehydeoxime (3) was synthesized by substitution reaction of 2 with t-BuOCl, and novel 3-(4-β-D-allopyranosyloxyphenyl)-4-aryl-5-aryl-1,2,4-oxadiazoline derivatives (5a～5h) have been synthesized by 1,3-dipolar cycloaddition reaction of 3 with Schiff bases 4a～4h.
以豆腐果苷为原料,与盐酸羟胺缩合反应生成4-β-D-吡喃阿洛糖苷-苯甲醛肟(2),2与次氯酸叔丁酯发生取代反应生成4-β-D-吡喃阿洛糖苷-α-氯苯甲醛肟(3);再将3与Schiff碱通过1,3-偶极环加成生成一系列3-(4-β-D-吡喃阿洛糖苷-苯基)-4-芳基-5-芳基-1,2,4-噁二唑啉(5a～5h)。
3.
Six novel 3-(p-methoxyphenyl)-5-aryl-3a,6a-dihydro-4,6-dioxo-pyrrolino[3′,4′-d]isoxazole derivatives(3a~3f) were synthesized by 1,3-dipolar cycloaddition reaction of N-arylmaleimides and 4-methoxybenzonitrile oxide in the presence of Et3N.
在三乙胺作用下,N-取代苯基马来酰亚胺与α-氯代对甲氧基苯甲醛肟发生1,3-偶极环加成反应,合成了6个新型3-(对甲氧基苯基)-5-芳基-3a,6a-二氢-4,6-二氧代氮杂茂并[3′,4′-d]异噁唑衍生物,其结构经1HNMR,IR和元素分析确证。
3) retro-1,3-dipolar addition fragmentation
逆1,3-偶极加成碎裂
4) 1,3-dipolar addition
1,3-偶极加成
5) 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%。
6) 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：极成
【极成】
（术语）因明学之语。自他共许而无异论之言义也。因明大疏一曰：“至极成就，故名极成。”
（术语）因明学之语。自他共许而无异论之言义也。因明大疏一曰：“至极成就，故名极成。”
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