Results 161 to 170 of about 266,703 (209)

Innovation new route for preparation of polyacrylamide bearing urethane group based on one-pot Curtius rearrangement

Polymer Bulletin, 2022
Daisuke Nagai, Naoto Shmizu, Riho Takahashi, M. Yoneyama, T. Yamanobe   +4 more
semanticscholar   +1 more source

Stereodivergent synthesis of the LFA-1 antagonist BIRT-377 by porcine liver esterase desymmetrization and Curtius rearrangement.

Organic and biomolecular chemistry, 2015
The LFA-1 inhibitor and leukocyte adhesion suppressor BIRT-377 was prepared in high enantiomeric excess by desymmetrization of dimethyl 2-p-bromobenzyl-2-methylmalonate, followed by condensation of the resulting carboxylic acid with 3,5-dichloroaniline ...
A. Johnson, M. Saunders, T. Back
semanticscholar   +1 more source

Azide monoliths as convenient flow reactors for efficient Curtius rearrangement reactions

Organic & Biomolecular Chemistry, 2008
The preparation and use of an azide-containing monolithic reactor is described for use in a flow chemistry device and in particular for conducting Curtius rearrangement reactions via acid chloride inputs.
Ian R. Baxendale, Nikzad Nikbin, Marcus Baumann, Christopher D. Smith, Steven V. Ley   +4 more
openaire   +3 more sources

Development and Manufacture of a Curtius Rearrangement Using Continuous Flow towards the Large-Scale Manufacture of AZD7648

Organic Process Research & Development, 2022
Carl J. Mallia, Niall G McCreanor, Danny H. Legg, Craig R. Stewart, Sarah Coppock, I. Ashworth, Joël Le Bars, Adam Clarke, Graeme Clemens, H. Fisk, Helen Benson, Samantha Oke, Trevor Churchill, Marcus A. Hoyle, L. Timms, K. Vare, Martin Sims, Steven Knight   +17 more
semanticscholar   +1 more source

A One‐Pot Tandem Synthesis of Sulfoximine‐Based Urea From Organic Acid via Curtius Rearrangement

ChemistrySelect, 2022
C. I. Irfana Jesin, V. R. Padma Priya, R. Kataria, V. Alisha, P. S. Vimalkumar, A. Joseph, G. Nandi   +6 more
semanticscholar   +1 more source

ChemInform Abstract: First Evidence for a Curtius‐Type Rearrangement Involving a Pentacoordinated Atom.

Chemischer Informationsdienst, 1984
AbstractDas photolytische Verhalten der λ5‐P‐Azide (I), (IV), (VII) und (X) wird untersucht, um Anwendungsbereich und Begrenzung der Curtius‐Umlagerung von an fünffach‐koordinierte Atome gebundenen Aziden zu ermitteln.
Ulrich Wermuth, Reinhard Schmutzler, Jean-Pierre Majoral, Antoine Baceiredo, Guy Bertrand   +4 more
openaire   +3 more sources

A modular flow reactor for performing Curtius rearrangements as a continuous flow process

Organic & Biomolecular Chemistry, 2008
The use of a mesofluidic flow reactor is described for performing Curtius rearrangement reactions of carboxylic acids in the presence of diphenylphosphoryl azide and trapping of the intermediate isocyanates with various nucleophiles.
Jason P. Tierney, Ian R. Baxendale, Nikzad Nikbin, Christopher D. Smith, Steven V. Ley, Marcus Baumann   +5 more
openaire   +3 more sources

Asymmetric synthesis of (S)-tylophorine and (S)-cryptopleurine via one-pot Curtius rearrangement and Friedel–Crafts reaction tandem sequence

, 2014
A general and practical enantioselective synthetic approach to both the phenanthroindolizidine and phenanthroquinolizidine alkaloids (S)-tylophorine and (S)-cryptopleurine was developed, which features a stereoselective alkylation and a one-pot Curtius ...
F. Chen, Bo Su, Qingmin Wang
semanticscholar   +1 more source

A comprehensive theoretical analysis of Curtius rearrangement of syn-syn and syn-anti conformers of oxalyl diazide.

Journal of Molecular Graphics and Modelling, 2021
Roghaye Taherian, B. Chahkandi, E. Zahedi   +2 more
semanticscholar   +1 more source

Curtius Rearrangement

2005
S. Braverman, M. Cherkinsky, M. L. Birsa
  +4 more sources