水杨醛/ 2-羟基苯乙酮supported与芳基-/烷基脲或水杨醛/ 2-羟基苯乙酮与4-芳基-/烷基半脲的一锅蒙脱土K-10粘土反应迅速生成3,4-二氢-4-肼基-2 H -在无溶剂微波辐射下,通过中间体水杨醛/ 2-羟基苯乙酮4-芳基-/烷基半咔唑酮(5)的环异构化反应生成苯并[ e ] -1,3-恶嗪-2-酮(9)。在相同条件下,肼(9)易于在氧化铝负载的硫酸铜(II)上进行还原性脱水,以提供2 H-苯并[ e ] -1,3-恶嗪-2-酮(10)。
Synthesis and antifungal activity of substituted salicylaldehyde hydrazones, hydrazides and sulfohydrazides
作者:Gregory L. Backes、Donna M. Neumann、Branko S. Jursic
DOI:10.1016/j.bmc.2014.07.022
日期:2014.9
Efficient synthetic procedures for the preparation of acid hydrazines and hydrazides were developed by converting the corresponding carboxylic acid into the methylester catalyzed by Amberlyst-15, followed by a reaction with hydrazine monohydrate. Sulfohydrazides were prepared from the corresponding sulfonyl chlorides and hydrazine monohydrate. Both of these group of compounds were condensed with substituted
Novel Salicylaldehyde-Based Mineral-Supported Expeditious Synthesis of Benzoxazin-2-ones
作者:Lal Dhar S. Yadav、Ritu Kapoor
DOI:10.1021/jo0492315
日期:2004.11.1
One-pot montmorillonite K-10 clay supported reactions of either salicylaldehyde/2-hydroxyacetophenone hydrazones and aryl-/alkylureas or salicylaldehydes/2-hydroxyacetophenone and 4-aryl-/alkylsemicarbazides expeditiously yield 3,4-dihydro-4-hydrazino-2H-benz[e]-1,3-oxazin-2-ones (9) via cycloisomerization of the intermediate salicylaldehyde/2-hydroxyacetophenone 4-aryl-/alkylsemicarbazones (5) under
水杨醛/ 2-羟基苯乙酮supported与芳基-/烷基脲或水杨醛/ 2-羟基苯乙酮与4-芳基-/烷基半脲的一锅蒙脱土K-10粘土反应迅速生成3,4-二氢-4-肼基-2 H -在无溶剂微波辐射下,通过中间体水杨醛/ 2-羟基苯乙酮4-芳基-/烷基半咔唑酮(5)的环异构化反应生成苯并[ e ] -1,3-恶嗪-2-酮(9)。在相同条件下,肼(9)易于在氧化铝负载的硫酸铜(II)上进行还原性脱水,以提供2 H-苯并[ e ] -1,3-恶嗪-2-酮(10)。