首页 / 专利库 / 农用化学品和农药 / 化学农药 / Preparation of aromatic sulfur compound

Preparation of aromatic sulfur compound

阅读:752发布:2023-04-12

专利汇可以提供Preparation of aromatic sulfur compound专利检索,专利查询,专利分析的服务。并且PURPOSE: To prepare an aromatic sulfur compound useful as intermediates for the preparation of agricultural chemicals, etc. in high yield, by heating and reacting an inexpensive aromatic hydroxy compound with H
2 S, thereby converting the hydroxyl group to a mercapto group and/or a disulfide bond.
CONSTITUTION: An aromatic thiol and/or an aromatic disulfide are prepared by reacting an aromatic hydroxy compound, e.g. monohydric phenols, naphthols, etc., with H
2 S in vapor phase at 400W600°C in the presence of a catalyst, e.g. silica- containing alumina, etc. When the reaction condition is rather mild, the main product is the aromatic thiol, and when it is severe, the ratio of the aromatic disulfide increases. Under ordinary reaction condition, the main product is the aromatic thiol. The aromatic disulfide can be converted to the aromatic thiol by reduction.
USE: Intermediates for the preparation of medicines, rubber chemicals, stabilizers for synthetic resins, etc.
COPYRIGHT: (C)1980,JPO&Japio,下面是Preparation of aromatic sulfur compound专利的具体信息内容。

高效检索全球专利

专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。

我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。

申请试用

分析报告

专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。

申请试用

QQ群二维码
意见反馈