Microreactor for Synthesis Via Intermediates with Assembled Units Enabling Rapid Operations

作者: N. Aoki , R. Kitajima , C. Itoh , K. Mae

DOI: 10.1002/CEAT.200800106

关键词: Total flowChemistryHeat transferSelectivityAnalytical chemistryMixing (process engineering)Heat exchangerMicroreactorYield (chemistry)Residence time (fluid dynamics)Chemical engineering

摘要: This paper describes a reactor for multistep syntheses via intermediates with improved selectivity of the desired product. is referred to as an assembled reactor. It consists mixing, residence time, and heat exchange units. Connection these units forms module single reaction. Repeated joints modules enable be used in syntheses. Mixing transfer rate were evaluated. enabled rapid mixing under total flow rates more than 30 mL/min efficiency order 10 K per 10 ms fluids temperature difference 20–40 K. was also applied synthesis bromobenzene p-bromophenyllithium gave product yield 80 %.

参考文章(12)
Kazuhiro Mae, Akira Suzuki, Taisuke Maki, Yukiya Hakuta, Hajime Sato, Kunio Arai, A New Micromixer with Needle Adjustment for Instant Mixing and Heating under High Pressure and High Temperature Journal of Chemical Engineering of Japan. ,vol. 40, pp. 1101- 1107 ,(2007) , 10.1252/JCEJ.07WE147
Yousuke Ushiogi, Tomoyuki Hase, Yoshiharu Iinuma, Atsushi Takata, Jun-ichi Yoshida, Synthesis of photochromic diarylethenes using a microflow system Chemical Communications. pp. 2947- 2949 ,(2007) , 10.1039/B702277H
Pierrette Guichardon, Laurent Falk, Characterisation of micromixing efficiency by the iodide–iodate reaction system. Part I: experimental procedure Chemical Engineering Science. ,vol. 55, pp. 4233- 4243 ,(2000) , 10.1016/S0009-2509(00)00068-3
Hirotsugu Usutani, Yutaka Tomida, Aiichiro Nagaki, Hideho Okamoto, Toshiki Nokami, Jun-ichi Yoshida, Generation and Reactions of o-Bromophenyllithium without Benzyne Formation Using a Microreactor Journal of the American Chemical Society. ,vol. 129, pp. 3046- 3047 ,(2007) , 10.1021/JA068330S
Nobuaki Aoki, Kazuhiro Mae, Effects of channel geometry on mixing performance of micromixers using collision of fluid segments Chemical Engineering Journal. ,vol. 118, pp. 189- 197 ,(2006) , 10.1016/J.CEJ.2006.02.011
S Panić, S Loebbecke, T Tuercke, J Antes, D Bošković, Experimental approaches to a better understanding of mixing performance of microfluidic devices Chemical Engineering Journal. ,vol. 101, pp. 409- 419 ,(2004) , 10.1016/J.CEJ.2003.10.026
Aiichiro Nagaki, Yutaka Tomida, Hirotsugu Usutani, Heejin Kim, Naofumi Takabayashi, Toshiki Nokami, Hideho Okamoto, Jun-ichi Yoshida, Integrated micro flow synthesis based on sequential Br-Li exchange reactions of p-, m-, and o-dibromobenzenes. Chemistry-an Asian Journal. ,vol. 2, pp. 1513- 1523 ,(2007) , 10.1002/ASIA.200700231
Norbert Kockmann, Thomas Kiefer, Michael Engler, Peter Woias, Convective mixing and chemical reactions in microchannels with high flow rates Sensors and Actuators B-chemical. ,vol. 117, pp. 495- 508 ,(2006) , 10.1016/J.SNB.2006.01.004
M.-A. Schneider, T. Maeder, P. Ryser, F. Stoessel, A microreactor-based system for the study of fast exothermic reactions in liquid phase: characterization of the system Chemical Engineering Journal. ,vol. 101, pp. 241- 250 ,(2004) , 10.1016/J.CEJ.2003.11.005
Michael Engler, Norbert Kockmann, Thomas Kiefer, Peter Woias, Numerical and experimental investigations on liquid mixing in static micromixers Chemical Engineering Journal. ,vol. 101, pp. 315- 322 ,(2004) , 10.1016/J.CEJ.2003.10.017