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

以酰为原料,经酰化,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料,经水解、乙酰化、环酸酯化、氧化、脱酸酯化、酰化、环氨基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.

以邻酸和对乙氧基胺为原料,经过胺的基化、芳胺的环化、N-烷基化、硫代化反应合成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.

讨论以草酸乙酯为原料,经过克莱森缩合、环合、氨解反应合成5基异唑3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.

以酐和取代为原料,经过乙酰化、水解及环合反应,合成2-蒽醌和2-氨基蒽醌,并对影响收率的工艺条件进行研究。

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.

本文研究三化钛水溶液作用下,邻硝基胺与1,2-酮在碱性介质中分子间的成环反应,提供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,经酰化,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.

综述了二碘化钐在分子内环化反应中的应。

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原料,经过胺的苯基化、二芳胺的环化、N-烷基化、化反应合成了N-丁基-2-乙氧基啶酮。

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.

以苯酐和取苯为原料,经过乙酰化、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,等反应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、酸酯、氧、脱酸酯、酰、氨基甲酸酯和等反应标物。

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、N-烷基、硫代反应了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、、氨解反应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、水解及反应,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反应,提供了一个方便地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%.

以甲酰氯为原料,经酰化,还原,环合等合成左旋西替利嗪盐酸盐,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、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.

以邻氯甲酸和对乙胺为原料,经过胺的化、二芳胺的环化、N-烷化、硫代化合成了N-丁-2-乙硫代吖啶酮。

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,邻硝胺与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%.

甲酰氯为原料,经酰化,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.

邻氯甲酸和对乙氧胺为原料,经过胺的化、二芳胺的环化、N-烷化、硫代化反应合成N--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.

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

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.

本文研究三氯化钛水溶液作用下,邻硝胺与1,2-二酮在碱性介质中分子间的成环反应,提供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%.

以酰为原料,经酰化,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料,经水解、乙酰化、环酸酯化、氧化、脱酸酯化、酰化、环氨基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.

以邻酸和对乙氧基胺为原料,经过胺的基化、芳胺的环化、N-烷基化、硫代化反应合成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.

讨论以草酸乙酯为原料,经过克莱森缩合、环合、氨解反应合成5基异唑3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.

以酐和取代为原料,经过乙酰化、水解及环合反应,合成2-蒽醌和2-氨基蒽醌,并对影响收率的工艺条件进行研究。

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.

本文研究三化钛水溶液作用下,邻硝基胺与1,2-酮在碱性介质中分子间的成环反应,提供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,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、酸酯、氧、脱酸酯、酰、氨基甲酸酯和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料,经过胺的苯基、二芳胺的、N-烷基、硫代反应合成了N-丁基-2-乙氧基硫代吖。

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

论了以草酸二乙酯为原料,经过克莱森缩合、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1,2-二在碱性介质中分子间的成反应,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%.

以苯甲氯为料,经,还,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.

方法以克拉霉素为料,经水解、乙、环酸、氧、脱酸、、环氨基甲酸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.

讨论了以草酸二乙为料,经过克莱森缩合、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.

以苯酐和取代苯为料,经过乙、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%.

以苯甲酰氯为原料,经酰化,还原,等反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.

综述了二碘化钐在分子内化反中。

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、酸酯化、氧化、脱酸酯化、酰化、氨基甲酸酯化等反成目标化物。

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,经过胺苯基化、二芳胺化、N-烷基化、硫代化反成了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、、氨解反成5甲基异唑3甲酰胺工艺改进。

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,经过乙酰化、水解及反,成了2-氯蒽醌2-氨基蒽醌,并对影响收率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下,邻硝基苯胺与1,2-二酮在碱性介质中分子间成反,提供了一个方便地成取代喹喔啉类化物方法。