3,3,6,6-四甲基-1,4-二恶烷-2,5-二酮合成路线 (共 9 条)
反应条件
α-hydroxyisobutyric acid potassium salt in acetone T=225°C; P=760.051 Torr; 4.16667 h;
参考文献
Evonik Roehm GmbH
Patent: US2010/29979 A1, 2010 ;
Location in patent: Page/Page column 4-5 ;
反应条件
sulfuric acid T=120°C; 0.5 h; Product distribution;
参考文献
Obmelyukhina, T. N.; Zil'berman, E. N.; Shmuilovich, S. M.; Chernov, A. I.; Tomashchuk, V. I.
J. Appl. Chem. USSR (Engl. Transl.), 1980 , vol. 53, # 2 p. 423 - 427,358 - 362
反应条件
sulfuric acid T=120°C; 0.5 h; Product distribution;
参考文献
Obmelyukhina, T. N.; Zil'berman, E. N.; Shmuilovich, S. M.; Chernov, A. I.; Tomashchuk, V. I.
J. Appl. Chem. USSR (Engl. Transl.), 1980 , vol. 53, # 2 p. 423 - 427,358 - 362
反应条件
ammonium hydrogensulfate; methyl acetate T=180°C; und Leiten des dampffoermigen Reaktionsgemisches ueber einen Kupfer-Phosphorsaeure-Quarz-Katalysator bei 480-520grad;
参考文献
Lonza A.G.
Patent: DE812910 , 1949 ;
DRP/DRBP Org.Chem.
反应条件
T=182°C; P=300.03 Torr; 10.0667 h;
参考文献
Evonik Roehm GmbH
Patent: US2010/10276 A1, 2010 ;
Location in patent: Page/Page column 7 ;
反应条件
1: With methanesulfonic acid; water
T=100 - 110°C; 1.5 h; Dean-Stark;
2: in toluene
72 h; Dean-StarkReflux; Reagent/catalyst;
参考文献
Watanabe, Kohtaro; Andou, Yoshito; Shirai, Yoshihito; Nishida, Haruo
Chemistry Letters, 2013 , vol. 42, # 2 p. 159 - 161
反应条件
sulfuric acid
T=140°C; 1 h; Product distribution;
参考文献
Obmelyukhina, T. N.; Zil'berman, E. N.; Shmuilovich, S. M.; Chernov, A. I.; Tomashchuk, V. I.
J. Appl. Chem. USSR (Engl. Transl.), 1980 , vol. 53, # 2 p. 423 - 427,358 - 362
反应条件
sulfuric acid
T=120°C; 0.666667 h; Product distribution;
参考文献
Obmelyukhina, T. N.; Zil'berman, E. N.; Shmuilovich, S. M.; Chernov, A. I.; Tomashchuk, V. I.
J. Appl. Chem. USSR (Engl. Transl.), 1980 , vol. 53, # 2 p. 423 - 427,358 - 362
反应条件
T=230°C; 360 h; various time, various tempertures; Product distributionMechanism;
参考文献
Salov, V. N.; Zil'berman, E. N.; Starkov, A. A.
J. Appl. Chem. USSR (Engl. Transl.), 1982 , vol. 55, # 7 p. 1617 - 1621,1487 - 1490