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 Posted: Fri 23:17, 31 Dec 2010 Post subject: mbt calzature 4 - methyl -2-- ethyl -6-- hydroxy p |
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4 - methyl -2-- ethyl -6-- Synthesis of hydroxy-pyrimidine
midinehydrochloridesynthesis: US, 4052397 [P]. 1997-10. O4. [9] Su Shaoquan. Herbicide Introduction [M]. Beijing: Science Press, 1989:323. [10] wild countries, Zhi-Jin, LI Zheng-Ming,[link widoczny dla zalogowanych], et al. New sulfonylurea compounds and biological activity [J]. Chem, 2003,24 (9): 1599.1603. [11] Li Bin. Industrial development and the prospect of herbicide [J]. Pesticides, 1998,37 (10) :1-7. [12] Chen Delong, Sun Nabo, Tancheng Xia, et al. Synthesis of pyrimidine phosphate [J]. Pesticides. 2001.41 (1) :8-9. [13] Xu Kexun. Fine organic chemical raw materials and intermediate Manual [M]. Beijing: Chemical Industry Press, 1997:483.495. [14] Su Shaoquan, Song Shunzu. Chemical Control of Weeds in China [M]. Beijing: China Agriculture Press, 1996:269.284. [15] Su Shaoquan. Herbicides recent development [J]. Pesticides, 1999,38 (10): 11.12. [16] Wang Xianfeng. Agrochemicals Handbook abroad [M]. Beijing: Chemical Industry Press. 1996:880.882. [17] Xuesi Jia, Zhang Aidong, Zou Zongliang. Substituted benzene ring containing pyrimidine synthesis and biological activity of sulfonylurea determination [J]. Synthetic Chemistry, 1996,4 (1): 76.78. [18] Sha Jiajun, Zhang Minheng,[link widoczny dla zalogowanych], Jiang Yajun, et al. New varieties of foreign Pesticide Manual [M]. Beijing: Chemical Industry Press,[link widoczny dla zalogowanych], 1993:86.94. Synthesisof4-Methyl �� �� 2 �� �� Ethyl �� �� 6 �� �� HydroxypyrimidineLUYang 'a,[link widoczny dla zalogowanych], TAOJing. zhao ', ZttANGm3 (1.ChemistryDepartmentofZhengzhouUniversity, ZhengzhouHenan450001, China; 2.OfficeofOrganicChemistry, XinyangAgricultureCollege, XinyangHenan464000,[link widoczny dla zalogowanych], China; 3.ChemistryDepartmentofDalianUniversity, DalianShenyang116024, China) Abstract: Thispaperdescricbesthemethodforpreparationof4-methy1.2. ethy1.6. hydroxypyrimidinefrompropiontrileasstartingnla-teria1. Propiontrilereactedwithhydrogenchlorideandfreeammoniatogivepropionamidehydrochloride. Thepurlx ~ ecompoundWasobtainedaftel \Theoptimalreactionconditionsal'ereactiontemperatureof40 ��, reactiontimeof6h ~ 7handpH = 12.4, whentheratioofacetoacetatetopro-piontrileis1.09: 1.0. theoverallyid! dofthereactioniS88.7%. Keywords: propiontrile; propionamidehydroehloride; 4-methyl-2. . ethy1. . 6. . hydroxypyrimidine; synthesis
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