Aug 312016

Abstract Image


Continuous flow Doebner–Miller synthesis of different quinaldines from respective anilines is demonstrated using sulfuric acid as a homogeneous catalyst. The extent of reaction was monitored for various parameters, namely, temperature, residence time, mole ratio of sulfuric acid to substrate, mole ratio of crotonaldehyde to substrate, and so forth. Continuous stirred reactors in series were used as a preferred configuration for this rection that generates byproduct in the form of sticky solid material. The approach has been extended for six different anilines, and the results are compared with batch reactions. Continuous stirred reactors in series with distributed dosing of crotonaldehyde facilitated a continuous flow reaction with lower byproduct formation, increased yields, and continuous workup and is a scalable approach.


Continuous Flow Doebner–Miller Reaction and Isolation Using Continuous Stirred Tank Reactors

Chem. Eng. & Process Dev. Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
Org. Process Res. Dev., Article ASAP
DOI: 10.1021/acs.oprd.6b00179
Publication Date (Web): August 22, 2016
Copyright © 2016 American Chemical Society
*E-mail: Fax: +91-20-25902621.
Image result for Maruti B. Yadav ncl
Mr. Maruti Yadav
Project Assistant
M.Sc. Organic Chemistry, Pune University, 2013
Process Development of API production in continuous flow

Image result for amol kulkarni ncl
Dr. Amol A. Kulkarni


Dr. Amol A. Kulkarni is a Scientist in the Chemical Engineering Division at the National Chemical Laboratory. He did his B. Chem. Eng. (1998), M. Chem. Eng (2000) and Ph.D. in chemical engineering (2003) all from the University Dept. of Chem. Technology (UDCT, Mumbai). In 2004 he worked at the Max Planck Institute-Magdeburg (Germany) as a Alexander von Humboldt Research Fellow. At NCL he is driving a research program on the design of microreactors and exploring their applications for continuous syntheses including of nanoparticles. He has been awarded with the Max-Planck-Visiting Fellowship from the Max-Planck-Society, Munich for 2008-2011. His research areas include: (i) design and applications of microreactors, (ii) design of multiphase reactors, (iii) experimental and computational fluid dynamics, and (iv) nonlinear dynamics of coupled systems. He is an active member of Initiative for Research and Innovation in Science (IRIS) supported by Intel’s Education Initiative to organize National Science Fair and popularize science in India.

Research areas

  • Multiphase reactors and Microreactors
  • Process Development and Scale-up
  • Process Intensification & MAGIC Processes
  • Industrial Flow Processes


  • Dr. Amol A. Kulkarni
    Office: 529, PP-1 Building, CEPD
    National Chemical Laboratory
    Dr. Homi Bhabha Road
    Pune 411008, India
    Phone  +91 20 2590 2153
    Fax +91 20 2590 2621

///////////Continuous Flow,  Doebner–Miller Reaction, Isolation, Continuous Stirred Tank Reactors, chemical engeineering, process, Amol A. Kulkarni, ncl, pune


Sorry, the comment form is closed at this time.


Get every new post on this blog delivered to your Inbox.

Join other followers: