1) Knorr cyclization
Knorr环化
1.
Ethyl 5(3)-(4-methoxyphenyl)-1H-pyrazole-3(5)carboxylate were synthesized through Claisen condensation,Knorr cyclization with 1-(4-methoxyphenyl)ethanone and diethyl oxalate as the starting materials.
以4-甲氧基苯乙酮和草酸二乙酯为起始原料,通过Claisen酯缩合、Knorr环化得到3(5)-(4-甲氧基苯基)-1H-5(3)-吡唑甲酸乙酯,再与水合肼反应得到3(5)-(4-甲氧基苯基)-1H-5(3)-吡唑酰肼,进一步与芳香缩合,高产率合成出10个新的3(5)-(4-甲氧基苯基)-1H-5(3)-取代吡唑酰腙化合物,通过元素分析、红外光谱、核磁共振氢谱等测试手段对所合成的10个新化合物进行了结构表征。
2) Koenigs-Knorr glycosidation
Koenigs-Knorr糖基化反应
3) Paal-Knorr reaction
Paal-Knorr反应
1.
Six 2,5 -diphenyl furan,thiophene and pyrrole derivatives were synthesized from substituted acetophenone by bromination,Aldol condensation and Paal-Knorr reaction.
以取代基苯乙酮为原料,经溴代、羟醛缩合、Paal-Knorr反应制得6个2,5-二苯基呋喃、噻吩、吡咯衍生物,总收率为20。
4) Paal-Knorr condensation
Paal-Knorr缩合
1.
Synthesis of N-carboalkyloxy-2,5-dimethylpyrroles by the Paal-Knorr condensation of carbamate with diketone;
Paal-Knorr缩合法合成N-烷氧羰基-2,5-二甲基吡咯
2.
Paal-Knorr condensation of hexane-2,5-dione with primary amines was successfully carried out at room temperature under solvent- and catalyst-free conditions.
本文报道了无需使用任何催化剂和溶剂,在室温条件下多种胺(包括脂肪胺、芳香胺)和2,5-己二酮发生Paal-Knorr缩合反应,且合成的吡咯衍生物产率较高。
5) Kenigs-Knorr reaction
Kenigs-Knorr反应
6) Koenigs-Knorr method
Koenigs-Knorr法
1.
2-Chloro-4-nitrophenyl-glucopyranoside is an important is the substrate of the glycosidases,which could be synthesized by Koenigs-Knorr method using 2-chloro-4-nitrophenol and D-glucose as the starting materials .
以2-氯-4-硝基酚和四乙酰溴代糖为原料,应用Koenigs-Knorr法制备了2-氯-4-硝基苯-β-D-葡萄糖苷。
补充资料：1,4-环己烷化二甲醇化二乙烯基醚
CAS: 17351-75-6
分子式: C12H20O2
中文名称: 1,4-环己烷化二甲醇化二乙烯基醚
英文名称: 1,4-cyclohexane dimethanol divinyl ether；1,4-bis((vinyloxy)methyl)cyclohexane；1,4-dimethanolcyclohexane divinyl ether；1,4-bis((ethenyloxy)methyl)-cyclohexan；1,4-bis[(ethenyloxy)methyl]-cyclohexan
分子式: C12H20O2
中文名称: 1,4-环己烷化二甲醇化二乙烯基醚
英文名称: 1,4-cyclohexane dimethanol divinyl ether；1,4-bis((vinyloxy)methyl)cyclohexane；1,4-dimethanolcyclohexane divinyl ether；1,4-bis((ethenyloxy)methyl)-cyclohexan；1,4-bis[(ethenyloxy)methyl]-cyclohexan
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