1)  cycloaddition reaction
环合加成
1.
2-(p-nitrophenyl)-4,5-di(m-nitrophenyl) imidazole was synthesized from benzoin through oxidation,nitration and cycloaddition reaction.
以苯偶姻为原料,经过氧化、硝化和环合加成制备了2-(4’-硝基苯基)-4,5-二(3’-硝基苯基)咪唑。
2)  photocyclo addition
光环合加成
3)  [2+2] photocycloaddition
[2+2]环合加成反应
1.
In the dissertation, we summarized the developement of [2+2] photo-cycloaddition in the synthesis of cyclobutane and cages on the base of the importance in the synthesis of cage compounds.
本论文以近年来出现的具有药理活性的二氮杂四星烷的合成为出发点,分析了[2+2]环合加成反应在笼形化合物合成中的重要地位,对其研究进展进行了综述;确定了[2+2]环合加成反应在合成四星烷类化合物中的应用为本论文的研究内容,该研究结果可为新的四星烷类化合物(四星烷,二氮杂四星烷,四氮杂四星烷和二氧杂四星烷)的合成提供指导性的建议。
4)  cyclization
环合
1.
6,11-Dihydro-11-oxodibenz[b,e]oxepin-2-acetic acid(Ⅰ) was synthesized from Ⅲand acetyl chloride through two-step reactions including chlorination and cyclization.
Ⅲ与乙酰氯经氯化、环合得6,11-二氢二苯骈[b,e]氧杂-11-酮-2-乙酸(Ⅰ),该步优化的反应条件为:n(Ⅲ)∶n(乙酰氯)=1∶1。
2.
5,6-dihydro-6- methyl-4H- thieno[2,3-b] thiopyrane-4-one(3)was produced through chlorination by thionyl chloride and cyclization by anhydrous of aluminium chloride,and then 5,6-dihydro-6- methyl-4H- thieno[2,3-b]thiopyrane-4-one-2-sulfonamide(1)was produced through sulfonatio,chlorination and ammonolysis.
以丁烯酸和2-巯基噻吩为原料,经加成缩合制得3-(2-噻吩硫基)丁酸(2);以氯化亚砜氯化,三氯化铝催化环合得5,6-二氢-4H-6-甲基噻嗯并[2,3-b]噻喃-4-酮(3);再经磺化、氯化、氨解反应合成得5,6-二氢-4H-6-甲基噻嗯并[2,3-b]噻喃-4-酮-2-磺酰胺(1)。
3.
Hexahydropyridazine, an important pesticidal and pharmaceutical intermediate, was synthesized via cata-lytic cyclization and alcoholysis using diformylhydrazine and 1,2-dichlorobutane as starting reagents, with a totalyield of 77% and purity of 97.
六氢哒嗪是一种重要的农药和医药中间体,以二甲酰肼和1,2-二氯丁烷为主要原料,经催化环合和醇解2步反应合成六氢哒嗪,总收率77%,产品纯度97。
5)  cyclocondensation
环合
1.
The target compounds were obtained in high yield through Michael conjugative addition of amines to methyl acrylates,cyclocondensation of the obtained diadducts in the presence of sodium methoxide,and decarboxylation of the cyclocondensation products in acid.
以胺类化合物为原料,与丙烯酸甲酯经过两次Michael加成得到N,N 二丙酸甲酯类化合物,该化合物在甲醇钠存在下进行环合,在酸性条件下脱羧,高收率得到4 哌啶酮类化合物,从而证明了这是一条合成N 取代 4 哌啶酮类化合物的普遍方法。
2.
N\|Aryl\|5,7\|dimethoxy\|1,2,4\|triazolo\pyrimidine-2\|sulfonamide(1) was prepared by the cyclocondensation of N\|Aryl\|5\|amino\|1,2,4\|triazole\|3\|sulfonamides with malonic acid in phosphorus oxychloride, followed by treatment with sodium methoxide\|methanol, to give 78.
以 N-( 2 -氯苯基 ) -5-氨基 -1 ,2 ,4-三唑 -3 -磺酰胺和 N-( 2 ,6-二氯苯基 ) -5-氨基 -1 ,2 ,4-三唑 -3 -磺酰胺为原料 ,与丙二酰氯 (由丙二酸与三氯氧磷反应得到 )进行环合 ,分别制得 N-( 2 -氯苯基 ) -5,7-二氯 -1 ,2 ,4-三唑 [1 ,5-a]嘧啶 -3 -磺酰胺和 N-( 2 ,6-二氯苯基 ) -5,7-二氯 -1 ,2 ,4-三唑 [1 ,5-a]嘧啶 -3 -磺酰胺。
3.
The reaction kinetics of cyclocondensation of propionaldehyde and ammonia of 2-ethyl-3,5-dimethylpyridine are studied on a fixed-bed reactor.
在固定床反应器中 ,研究了丙醛与氨环合的反应动力学特性 。
6)  cyclization
环合反应
1.
In this paper,the title compound was synthesized through cyclization reaction of p-methylbenzoic acid,p-chloromethylbenzoic acid and p-nitrilbenzyl chloride with 4,6-diaminoresorcinol dihydrochloride.
分别以对甲基苯甲酸和对氯甲基苯甲酸以及对氰基氯苄为主要原料,与4,6-二氨基间苯二酚盐酸盐进行环合反应,合成了2,6-二(4-氯甲基苯基)苯并[1,2-d;5,4-d′]二噁唑,并采用IR,1H NMR和元素分析等分析方法对产物结构进行了确认。
2.
The intermediate of Tinoxicam,4-hydroxy-3-methyl-2H-thieno-1,2-thiazine-2-(methyl) carboxylate-1,1-dioxide(MHTTCD) was synthesized from methyl 3-amino-2-thiophene methyl carboxylate through four steps: chlorosulfonylation,methylamination,N-alkylation,and cyclization.
环合反应在甲醇钠的甲醇溶液中进行,合适的甲醇钠浓度为1mol/L。
3.
The synthesis of furan phenol through cyclization were studied, catalyzed by aluminium alkoxide and the affect of the catalyst weight against the selection of furan phenol and the feeding in or distilling out of the alcohol against the reaction yield of product.
采用醇铝作为呋喃酚环合反应催化剂,研究催化剂用量与呋喃酚选择性的关系,以及在反应体系中添加或采出醇对反应收率的影响。
参考词条
补充资料：成环加成聚合
分子式：
CAS号：

性质：又称环化聚合。多官能团单体在聚合过程中生成主链含有环状结构的聚合称为成环聚合。成环聚合又可分为缩聚成环和加聚成环两类。当分子内存在两个以上非共轭双键的烯类单体(如二甲基二烯丙基溴化铵)时，其链增长反应是发生在分子内的双键之间的加成反应，生成具有环状结构的聚合物，这种聚合就是成环加成聚合。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。