Results 251 to 260 of about 738,855 (305)

Cyclic carbonates from carbon dioxide and oxiranes

Monatshefte f�r Chemie Chemical Monthly, 1984
The synthesis of cyclic carbonates2 by reaction of carbon dioxide with oxiranes1 in the presence of alkali metal salt-phase-transfer agent catalysts is reported. A reaction mechanism is proposed.
Gabriel Rokicki, Witold Kuran, Barbara Pogorzelska-Marciniak   +2 more
openaire   +1 more source

ROP of Cyclic Carbonates

2018
In this chapter, the ring-opening polymerization (ROP) of cyclic carbonates is described, including mechanism, catalysts/initiators, and types of monomers. Since carbonates are partially esters, the ROP generally proceeds via transesterification and hence some aspects of the catalysis and mechanism overlap with those for cyclic esters.
openaire   +1 more source

Photolysis of a Cyclic Carbonate Ester and a Cyclic Sulfite Ester

The Chemical Educator, 2014
The experiment in this paper addresses mechanistic approaches to chemical reactions involved in an undergraduate advanced laboratory exercise. In this experiment, students will prepare two structurally similar molecules, subject these to irradiation in a polar aprotic solvent and a polar protic solvent, and analyze the mixtures by Nuclear Magnetic ...
Benny E. Arney, Jacob Perry, Nathan Thompson, Rick C. White   +3 more
openaire   +1 more source

New carbon carbon bond forming reactions of cyclic sulfate esters and cyclic sulfamidates

Tetrahedron Letters, 2002
Abstract Carbon–carbon bonding forming reactions of two cyclic sulfate esters and a cyclic sulfamidate are reported, the former with lithium dianions to give substituted tetrahydrofuran derivatives with displacement of sulfate, and the latter undergoes ring-opening monosubstitution reactions with stabilised organolithiums and an organocuprate species.
Melanie K Pound, Darren L Davies, Melanie Pilkington, Maria M de Pina Vaz Sousa, John D Wallis   +4 more
openaire   +1 more source

Synthesis of cyclic carbonates by a novel carbonate rearrangement

Journal of the Chemical Society, Chemical Communications, 1974
2,3-Dibromopropyl ethyl carbonate (1) and 1,3-dibromo-2-propyl ethyl carbonate (2) equilibrate at 180° with concomitant formation of 3-bromopropylene carbonate (3) and ethyl bromide (4).
openaire   +1 more source

Cyclic Carbonates Synthesised From CO2: Applications, Challenges and Recent Research Trends

Current Opinion in Green and Sustainable Chemistry, 2021
Nick Daems, Paolo P Pescarmona
exaly  

Cyclopropanediol cyclic carbonates

Tetrahedron Letters, 1965
Fred W. Breitbeil, John J. McDonnel, Theodore A. Marolewski, Donald T. Dennerlein   +3 more
openaire   +1 more source

Recent Progress of Catalysts for Synthesis of Cyclic Carbonates From CO2 and Epoxides

Journal of CO2 Utilization, 2023
Ting Yan
exaly  

Five-Membered Cyclic Carbonates: Versatility for Applications in Organic Synthesis, Pharmaceutical, and Materials Sciences

Applied Sciences (Switzerland), 2021
Patrick Rollin, Eder João Lenardão, Raquel G Jacob   +2 more
exaly  

Metal–Organic Frameworks for the Chemical Fixation of CO2 Into Cyclic Carbonates

Coordination Chemistry Reviews, 2020
Dinesh De, Parimal K Bharadwaj, Tapan K Pal   +2 more
exaly