查询词典 pyrazole

In order to search for the new pyrazolyl-heterocycles lead compounds, eight pyrazolyl- were synthesized from 3-ethyl-1-methyl- 4-substituted-5-pyrazolecarboxylic acid chloride and nitrogen heterocyclic rings such as 3-methyl-5-pyrazolone, 1H-3-ethyl-5-pyrazole ester, etc.

为了寻求新的含吡唑双杂环先导化合物，用 4 取代 1 甲基 3 乙基 5 吡唑甲酰氯与 3 甲基 5 吡唑酮、3 乙基 5 吡唑甲酸乙酯等含氮杂环反应得到了 8个新的含吡唑环的双杂环类化合物。

The preliminary bioassay indicated that the pyridine compounds display inhibitory activities against mosquites; pyrazolopyridine compounds possessed some plant growth regulation activity; pyrazole compounds displayed some inhibitory activities against wheat rust and tobacco mosaic virus respectively.

初步的生物活性测定结果表明，吡啶类化合物对蚊子有较好的杀虫作用；吡唑并吡啶类化合物有一定的植物生长调节活性；部分吡唑类化合物对小麦锈病和烟草花叶病毒有较好的抑制效果；部分1，2，3-噻二唑类化合物对烟草花叶病毒有很好的抑制效果，与商品药剂病毒A的效果相近。

The intermediate 5-amino-1H-pyrazole-4-carboxylic acid ethyl ester prepared in the first part underwent successively hydrazinolysis, condensations with ketene dithioacetals and alkylations to give rise to the dipyrazolyhnethanes.

从第一部分中的中间体5-氨基-1H-吡唑-4-羧酸乙酯开始，经过肼解、与乙烯酮二硫代缩醛的缩合反应和烷基化反应，合成了二吡唑基甲酮类化合物。

Sodium glutamate decomposition when exposed to heat will mutate substances cross-pyrazole excessive intake may cause the colon, small intestine, liver, brain and other parts of the cancer.

谷氨酸钠分解，受热时会发生突变物质&跨唑&过量摄取可能会导致结肠，小肠，肝，脑及癌症的其他部分。

Amino-3-cyan-N-(2,6-dichloro-4-trifluoromethylphenyl)pyrazole was the important intermediate which was used to synthesize the efficient insecticide "Regent", which was researched and gone in to operation firstly by French Phone Poulenc company.

中文摘要： 5-氨基-3-氰基-N-(2，6-二氯-4-三氟甲基苯基)吡唑是合成高效杀虫剂&锐劲特&的重要中间体，最先由法国罗纳普朗克公司研发并投产，在国内鲜有相关的合成报道。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。