2) 3 dipolar cycloaddition
3偶极环加成反应
4) 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。
5) 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。
6) 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)。
补充资料：上成
1.复姓。汉有上成公。见《后汉书．方术传下》。
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