LOGIN TO YOUR ACCOUNT

Username
Password
Remember Me
Or use your Academic/Social account:

CREATE AN ACCOUNT

Or use your Academic/Social account:

Congratulations!

You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.

Important!

Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message

CREATE AN ACCOUNT

Name:
Username:
Password:
Verify Password:
E-mail:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Mueller, Simon T. R.
Languages: English
Types: Doctoral thesis
Subjects: QD
Diazo compounds are highly reactive carbene precursors which can be used to generate molecular complexity rapidly. However, diazo compounds are highly energetic and dangerous\ud compounds and therefore, their use in large-scale applications remains rare.\ud In this work, the use of continuous flow technology for the safe, efficient and scalable use of diazo compounds is described. By using flow chemistry, diazo compounds were safely generated within small diameter devices and directly used in subsequent reactions without a hazardous isolation of the diazo reagents. This thesis describes five new protocols for the use of diazo compounds. In the first project, ethyl diazoacetate (EDA) was generated safely in flow and used in subsequent aldol addition reactions to aldehydes with high yields (right). The preparation of the organometallic ethyl lithiodiazoacetate species in flow was achieved in the second project and used for the addition to ketones (left).\ud Detailed kinetic and thermal studies on aryl diazoacetates were performed in the third project which yielded a new, multistep continuous flow protocol for the use of donor / acceptor carbenes. Rapid reaction optimisation was achieved using in-line infrared spectroscopy.\ud Purification of the diazo species was performed in flow using in-line liquid / liquid extraction methodology.\ud The fourth protocol entails the rapid assembly of complex lactone-cyclopropane structures of biological interest from diazo compounds in a combination of flow and batch technologies (left). In the final project, the stereoselective preparation of indolines using diazo compounds is discussed (right).
  • No references.
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article