正己酸乙酯置于乙醇,硫酸,Sodium,Sodium Nitrite体系中,化学反应生成 己基亚硝酸盐 参考文献:Henry,Recueil Des Travaux Chimiques Des Pays-Bas,1905,Vol. 24,P. 332,337 标题:Henry,Recueil Des Travaux Chimiques Des Pays-Bas,1905,Vol. 24,P. 332,337
专利号:US-4264775-A 优先权日:1976-10-27 标 题:Synthesis of β-aminostyrenes 发明人:WHITE WILLIAM A 权利人:LILLY CO ELI 摘要:A simple process for the preparation of beta -aminostyrenes proceeds from anilines by successively diazotizing, reacting with a vinyl ester, and reacting with a secondary amine without purification of the intermediate products. The compounds are reactive enamines useful in organic synthesis.
专利号:US-5268501-A 优先权日:1990-02-08 标 题 :Process for preparing haloketo acid derivatives 发明人:IKEDA TAKAHARU; KAI SEIICHI; MINAI MASAYOSHI 权利人:SUMITOMO CHEMICAL CO 摘要:Process for preparing haloketo acid derivatives [I]: ##STR1## wherein R is H or C 1-6 alkyl, and X is chlorine or bromine, which comprises reacting β-oxo-acid ester [II]: ##STR2## wherein R 1 is H or C 1-6 alkyl, R 2 is C 1-5 alkyl or OR 3 (R 3 is C 1-6 alkyl), and X is the same as above, with nitrosating agent [IV]: n n ONOR.sup.4 [IV] n n wherein R 4 is H, alkyl, halogen or SO 3 H to give 7-halo-2-hydroxyminoheptanoic acid ester [III]: ##STR3## wherein R 1 and X are the same as above, following by reacting the product with aldehyde or ketone; and intermediates therefor, and process for preparing said intermediates. Said haloketo acid derivatives are useful as intermediate for synthesis of cilastatin, which is useful as medicament, especially as dehydropeptidase inhibitor.
专利号:US-5202467-A 优先权日:1990-02-08 标题:Process for preparing haloketo acid derivatives 发明人:IKEDA TAKAHARU; KAI SEIICHI; MINAI MASAYOSHI 权利人:SUMITOMO CHEMICAL CO 摘要:Process for preparing haloketo acid derivatives [I]: ##STR1## wherein R is H or C 1-6 alkyl, and X is chlorine or bromine, which comprises reacting β-oxo-acid ester [II]: ##STR2## wherein R 1 is C 1-6 alkyl, R 2 is C 1-5 alkyl or OR 3 (R 3 is C 1-6 alkyl), and X is the same as above, with nitrosating agent [IV]: n n ONOR.sup.4 [IV] n n wherein R 4 is H, alkyl, halogen or SO 3 H to give 7-halo-2-hydroxyiminoheptanoic acid ester [III]: ##STR3## wherein R 1 and X are the same as above, followed by reacting the product with aldehyde or ketone; and intermediates therefor, and process for preparing said intermediates. Said haloketo acid derivatives are useful as intermediate for synthesis of cilastatin, which is useful as medicament, especially as dehydropeptidase inhibitor.
专利号:CN-109053603-A 优先权日:2018-05-29 标 题 :A kind of multi-component synthesis method of 5-1-1,2,3-triazole compounds in aqueous solution
专利号:CN-112239415-B 优先权日:2020-10-16 标题:Synthesis method of alpha-cyano-sodium benzoate
参考文献:10.1007/bf00325611 摘要:Luxenhofer O, Schneider E, Ballschmiter K. Separation, detection and occurrence of (C2–C8)-alkyl- and phenyl-alkyl nitrates as trace compounds in clean and polluted air. Analytical and Bioanalytical Chemistry. 1994 Jun;350(6):384–94. doi: 10.1007/bf00325611.