Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.

以苯甲酰氯为原料,经酰,还原,环等反应成左旋西替利嗪盐酸盐,反应总收率为8.05%。

Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.

综述了二碘钐内环反应中的应用。

Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

方法以克拉霉素为起始原料,经水解、乙酰、环酸酯、氧、脱酸酯、酰、环氨基甲酸酯和环等反应成目物。

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯苯甲酸和对乙氧基苯胺为原料,经过胺的苯基、二芳胺的环、N-烷基、硫代反应成了N-丁基-2-乙氧基硫代吖啶酮。

This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

讨论了以草酸二乙酯为原料,经过克莱森缩、环、氨解反应成5甲基异唑3甲酰胺工艺的改进。

In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.

以苯酐和取代苯为原料,经过乙酰、水解及环反应,成了2-氯蒽醌和2-氨基蒽醌,并对影响收率的工艺条件进行了研究。

Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.

本文研究了三氯钛水溶液作用下,邻硝基苯胺与1,2-二酮碱性介质中间的成环反应,提供了一个方便地成取代喹喔啉类物的方法。

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.

以苯甲酰氯为原料,经酰,还原,环合等反应合成左旋西替利嗪盐酸盐,反应总收率为8.05%。

Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.

综述了二碘钐在环反应中的应用。

Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

方法以克拉霉素为起始原料,经水解、乙酰、环酸酯、氧、脱酸酯、酰、环氨基甲酸酯和环合等反应合成合物。

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯苯甲酸和对乙氧基苯胺为原料,经过胺的苯基、二芳胺的环、N-烷基、硫代反应合成了N-丁基-2-乙氧基硫代吖啶酮。

This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

讨论了以草酸二乙酯为原料,经过克莱森缩合、环合、氨解反应合成5甲基异唑3甲酰胺工艺的改进。

In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.

以苯酐和取代苯为原料,经过乙酰、水解及环合反应,合成了2-氯蒽醌和2-氨基蒽醌,并对影响收率的工艺条件进行了研究。

Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.

本文研究了三氯钛水溶液作用下,邻硝基苯胺与1,2-二酮在碱性介质中间的成环反应,提供了一个方便地合成取代喹喔啉类合物的方法。

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.

以甲酰氯为原料,经酰化,还原,环合等合成左旋西替利嗪酸,总收率为8.05%。

Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.

综述了二碘化钐在分子内环化中的用。

Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

方法以克拉霉素为起始原料,经水解、乙酰化、环酸酯化、氧化、脱酸酯化、酰化、环氨甲酸酯化和环合等合成目标化合物。

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯甲酸和对乙氧为原料,经过的化、二芳的环化、N-烷化、硫代化合成了N-丁-2-乙氧硫代吖啶酮。

This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

讨论了以草酸二乙酯为原料,经过克莱森缩合、环合、氨解合成5甲异唑3甲酰工艺的改进。

In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.

以酐和取代为原料,经过乙酰化、水解及环合,合成了2-氯蒽醌和2-氨蒽醌,并对影响收率的工艺条件进行了研究。

Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.

本文研究了三氯化钛水溶液作用下,邻硝与1,2-二酮在碱性介质中分子间的成环,提供了一个方便地合成取代喹喔啉类化合物的方法。

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.

以苯甲酰氯为原,酰化,还原,环合等反应合成左旋西替利嗪盐盐,反应总收率为8.05%。

Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.

综述了二碘化钐在分子内环化反应中的应用。

Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

方法以克拉霉素为起始原,解、乙酰化、环酯化、氧化、酯化、酰化、环氨基甲酯化和环合等反应合成目标化合物。

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯苯甲和对乙氧基苯胺为原,过胺的苯基化、二芳胺的环化、N-烷基化、硫代化反应合成了N-丁基-2-乙氧基硫代吖啶酮。

This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

讨论了以草二乙酯为原,过克莱森缩合、环合、氨解反应合成5甲基异唑3甲酰胺工艺的改进。

In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.

以苯酐和取代苯为原,过乙酰化、解及环合反应,合成了2-氯蒽醌和2-氨基蒽醌,并对影响收率的工艺条件进行了研究。

Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.

本文研究了三氯化钛溶液作用下,邻硝基苯胺与1,2-二酮在碱性介质中分子间的成环反应,提供了一个方便地合成取代喹喔啉类化合物的方法。

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.

以苯甲酰氯为,酰化,还,环合等反应合成左旋西替利嗪盐盐,反应总收率为8.05%。

Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.

综述了二碘化钐在分子内环化反应中的应用。

Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

方法以克拉霉素为起始,水解、乙酰化、环化、氧化、脱化、酰化、环氨基甲化和环合等反应合成目标化合物。

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯苯甲和对乙氧基苯胺为,过胺的苯基化、二芳胺的环化、N-烷基化、硫代化反应合成了N-丁基-2-乙氧基硫代吖啶酮。

This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

讨论了以草二乙为,过克莱森缩合、环合、氨解反应合成5甲基异唑3甲酰胺工艺的改进。

In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.

以苯酐和取代苯为,过乙酰化、水解及环合反应,合成了2-氯蒽醌和2-氨基蒽醌,并对影响收率的工艺条件进行了研究。

Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.

本文研究了三氯化钛水溶液作用下,邻硝基苯胺与1,2-二酮在碱性介质中分子间的成环反应,提供了一个方便地合成取代喹喔啉类化合物的方法。

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.

以苯甲酰氯为,酰化,还,环合等反应合成左旋西替酸,反应总收率为8.05%。

Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.

综述了二碘化钐在分子内环化反应中的应用。

Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

方法以克拉霉素为起始,水解、乙酰化、环酸酯化、氧化、脱酸酯化、酰化、环氨基甲酸酯化和环合等反应合成目标化合物。

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯苯甲酸和对乙氧基苯胺为,过胺的苯基化、二芳胺的环化、N-烷基化、硫代化反应合成了N-丁基-2-乙氧基硫代吖啶酮。

This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

讨论了以草酸二乙酯为,过克莱森缩合、环合、氨解反应合成5甲基异唑3甲酰胺工艺的改进。

In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.

以苯酐和取代苯为,过乙酰化、水解及环合反应,合成了2-氯蒽醌和2-氨基蒽醌,并对影响收率的工艺条件进行了研究。

Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.

本文研究了三氯化钛水溶液作用下,邻硝基苯胺与1,2-二酮在碱性介质中分子间的成环反应,提供了一个方便地合成取代喹喔啉类化合物的方法。

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.

以苯甲酰氯为原料,经酰,还原,环等反应成左旋西替利嗪盐酸盐,反应总收率为8.05%。

Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.

综述了二碘钐内环反应中的应用。

Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

方法以克拉霉素为起始原料,经水解、乙酰、环酸酯、氧、脱酸酯、酰、环氨基甲酸酯和环等反应成目物。

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯苯甲酸和对乙氧基苯胺为原料,经过胺的苯基、二芳胺的环、N-烷基、硫代反应成了N-丁基-2-乙氧基硫代吖啶酮。

This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

讨论了以草酸二乙酯为原料,经过克莱森缩、环、氨解反应成5甲基异唑3甲酰胺工艺的改进。

In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.

以苯酐和取代苯为原料,经过乙酰、水解及环反应,成了2-氯蒽醌和2-氨基蒽醌,并对影响收率的工艺条件进行了研究。

Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.

本文研究了三氯钛水溶液作用下,邻硝基苯胺与1,2-二酮碱性介质中间的成环反应,提供了一个方便地成取代喹喔啉类物的方法。

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.

以苯甲酰氯为原料,经酰,还原,合等反合成左旋西替利嗪盐酸盐,反总收率为8.05%。

Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.

综述了二碘钐在分子内反中的。

Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

法以克拉霉素为起始原料,经水解、乙酰、酸酯、氧、脱酸酯、酰、氨基甲酸酯合等反合成目标合物。

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯苯甲酸对乙氧基苯胺为原料,经过胺的苯基、二芳胺的、N-烷基、硫代反合成了N-丁基-2-乙氧基硫代吖啶酮。

This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

讨论了以草酸二乙酯为原料,经过克莱森缩合、合、氨解反合成5甲基异唑3甲酰胺工艺的改进。

In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.

以苯酐取代苯为原料,经过乙酰、水解及合反,合成了2-氯蒽醌2-氨基蒽醌,并对影响收率的工艺条件进行了研究。

Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.

本文研究了三氯钛水溶液作下,邻硝基苯胺与1,2-二酮在碱性介质中分子间的成反,提供了一个便地合成取代喹喔啉类合物的法。

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.

以苯甲氯为原,,还原,环合等反应合成左旋西替利嗪盐酸盐,反应总收率为8.05%。

Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.

综述了二碘钐在分子内环反应中的应用。

Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

方法以克拉霉素为起始原,水解、乙、环酸酯、氧、脱酸酯、、环氨基甲酸酯和环合等反应合成目标合物。

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯苯甲酸和对乙氧基苯胺为原,过胺的苯基、二芳胺的环、N-烷基、反应合成了N-丁基-2-乙氧基吖啶酮。

This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

讨论了以草酸二乙酯为原,过克莱森缩合、环合、氨解反应合成5甲基异唑3甲胺工艺的改进。

In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.

以苯酐和取苯为原,过乙、水解及环合反应,合成了2-氯蒽醌和2-氨基蒽醌,并对影响收率的工艺条件进行了研究。

Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.

本文研究了三氯钛水溶液作用下,邻硝基苯胺与1,2-二酮在碱性介质中分子间的成环反应,提供了一个方便地合成取喹喔啉类合物的方法。