Results 91 to 100 of about 2,792 (191)

Synthesis of 1,3-Disubstituted Azetidines via a Tandem Ring-Opening Ring-Closing Procedure

, 2012
The synthesis of N-substituted symmetrical azetidines has been achieved in high yields via the reaction of primary amines undergoing an epoxide ring-opening reaction followed by an in situ ring-closing step.
Turner, Nicholas J.; id_orcid, March-Cortijos, Andrea, Snape, Timothy J., Turner, Nicholas, Snape, Timothy   +4 more
core   +1 more source

NOVEL SYNTHESIS OF PYRROLIDINONES BY COBALT CARBONYL CATALYZED CARBONYLATION OF AZETIDINES - A NEW RING-EXPANSION CARBONYLATION REACTION OF 2-VINYLAZETIDINES TO TETRAHYDROAZEPINONES

, 1989
Pyrrolidinones can be synthesized in high yields and regioselectivity by the cobalt carbonyl catalyzed carbonylation of azetidines. For 2-substituted azetidines (alkyl, aryl, CH2OH, CH2OR, CH2OCOR, and COOR), carbonyl insertion occurs in the more or less
D. ROBERTO, H. ALPER
core   +1 more source

Reaction of Azetidines with Chloroformates

, 2016
The reaction of an azetidine with a chloroformate can give either the dealkylated heterocycle or the ring-opened product (γ-chloroamine), which can further cyclize to the oxazinanone. A general study of this underrated reaction was conducted and revealed
Gwilherm Evano (1355874), Sami Lakhdar (1739698), Monica Vargas-Sanchez (2518681), François Couty (2454361)   +3 more
core   +1 more source

Editorial: Strained Aza-Heterocycles in Synthesis

Frontiers in Chemistry, 2019
Hyun-Joon Ha
doaj   +1 more source

An Efficient Synthesis of Azetidines with (2-Bromoethyl)sulfonium Triflate

, 2012
Easily accessible arylglycine derivatives were cyclized to azetidines by using commercially available (2-bromoethyl)sulfonium triflate in a simple and mild procedure.
Moya, Juan F., Aggarwal, Varinder K., Unthank, Matthew G., McGarrigle, Eoghan M., Fritz, Sven P.   +4 more
core   +1 more source

Iron- and Cobalt-Catalyzed Arylation of Azetidines, Pyrrolidines, and Piperidines with Grignard Reagents

, 2016
Iron- and cobalt-catalyzed cross-couplings between iodo-azetidines, -pyrrolidines, -piperidines, and Grignard reagents are disclosed. The reaction is efficient, cheap, chemoselective and tolerates a large variety of (hetero)­aryl Grignard ...
Sébastien Reymond (1710181), Paola Ciapetti (1710169), Marie Brellier (1710172), Baptiste Barré (1710178), Rémy Campagne (1710175), Julien Marin (39157), Amandine Guérinot (1457326), Janine Cossy (1457317), Laurine Gonnard (1710166)   +8 more
core   +1 more source

Azetidines [PDF]

Chemical & Engineering News Archive, 2014
openaire   +1 more source

Modular synthesis of functionalized azetidines through visible-light copper-catalyzed carboamination of 1,3-dienes with azabicyclo[1.1.0]butanes. [PDF]

Chem Sci
Koo Y, Lee D, Park J, Hong S.
europepmc   +1 more source

Strain Release of 1-Azabicyclo[1.1.0]butanes as a Gateway to Highly Functionalized Azetidines: New Strategies and Structural Motifs. [PDF]

Chemistry
Gelato Y, Natho P, Colella M, Luisi R.
europepmc   +1 more source

Lewis Acid Catalyzed Dual Strain-Release Platform for Transforming Azabicyclo[1.1.0]butanes into Functionalized Azetidines with Donor-Acceptor(D-A) Cyclopropanes and Bicyclo[1.1.0]butanes. [PDF]

Org Lett
Hazra S, Patel M, Mondal S, Ahmed R, Sasmal P, De S, Saha J.   +6 more
europepmc   +1 more source