Synthesis and Characterization of Thiol Functional Cyclic Carbonate

2015 ◽  
Vol 1095 ◽  
pp. 377-380
Author(s):  
Wen Cai Li ◽  
Huan Huan Zhang ◽  
Yan Ling Li ◽  
Chang Qing Fu
Keyword(s):  
Dimethyl Carbonate ◽  
Addition Reaction ◽  
Raw Materials ◽  
Cyclic Carbonate ◽  
Synthesis And Characterization ◽  
Esterification Reaction ◽  
Glycerol Carbonate ◽  
Michael Addition Reaction ◽  
Mild Conditions

(2-one-1,3-dioxolan-4-yl) methyl 3-mercaptopropanoate(DMMP), which can be used for Michael addition reaction, was synthesized through two simple routs. First, glycerol carbonate was synthesized under mild conditions without any solvent, using glycerol and dimethyl carbonate as raw materials by green chemistry way. Then DMMP was obtained by simple esterification reaction of glycerol carbonate and 3-mercaptopropionic acid. The structure of them was characterized by 1H NMR and FTIR.

Synthesis and characterization of carboxyl endfunctionalized poly(methylidene malonate 2.1.2)

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Peggy Studer ◽  
Gérard Riess
Keyword(s):  
Molecular Weight ◽  
Chain Transfer ◽  
Addition Reaction ◽  
Side Reaction ◽  
Synthesis And Characterization ◽  
Carboxyl Group ◽  
Michael Addition Reaction ◽  
Molecular Weight Range ◽  
C Nmr

Abstractα-Carboxyl end-functionalized poly(methylidene malonates 2.1.2) were prepared by free-radical polymerization in the molecular weight range 5 000 - 10 000 by using 4,4'-azobis(4-cyanopentanoic acid) as a functional initiator. A functionality of one carboxyl group per chain could be obtained. On the contrary, it was demonstrated that chain transfer functionalization with mercaptans is not applicable in this case. A Michael addition reaction between the mercaptan and the monomer becomes the predominant side-reaction. The corresponding mercaptanmonomer adduct was characterized in detail by 1H and 13C NMR.

CaO-catalyzed synthesis of glycerol carbonate from glycerol and dimethyl carbonate: Isolation and characterization of an active Ca species

2011 ◽  
Vol 401 (1-2) ◽  
pp. 220-225 ◽  
Author(s):  
Fidelis Stefanus Hubertson Simanjuntak ◽  
Tae Kyung Kim ◽  
Sang Deuk Lee ◽  
Byoung Sung Ahn ◽  
Hoon Sik Kim ◽  
...  
Keyword(s):  
Dimethyl Carbonate ◽  
Glycerol Carbonate ◽  
Isolation And Characterization

scholarly journals H/D Exchange Under Mild Conditions in Arenes and Unactivated Alkanes with C6D6 and D2O Using Rigid, Electron-rich Iridium PCP Pincer Complexes

2020 ◽  
Author(s):  
Joel D. Smith ◽  
George Durrant ◽  
Daniel Ess ◽  
Warren Piers
Keyword(s):  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Room Temperature ◽  
Pincer Complexes ◽  
Synthesis And Characterization ◽  
Hydrogen Isotope Exchange ◽  
Mild Conditions ◽  
Highly Active ◽  
Pcp Pincer

<div>The synthesis and characterization of an iridium polyhydride complex (Ir-H4)</div><div>supported by an electron-rich PCP framework is described. This complex readily loses molecular</div><div>hydrogen allowing for rapid room temperature hydrogen isotope exchange (HIE) at the hydridic</div><div>positions and the α-C-H site of the ligand with deuterated solvents such as benzene-d6, toluene-d8</div><div>and THF-d8. The removal of 1-2 equivalents of molecular H2 forms unsaturated iridium carbene</div><div>trihydride (Ir-H3) or monohydride (Ir-H) compounds that are able to create further unsaturation</div><div>by reversibly transferring a hydride to the ligand carbene carbon. These species are highly active</div><div>hydrogen isotope exchange (HIE) catalysts using C6D6 or D2O as deuterium sources for the</div><div>deuteration of a variety of substrates. By modifying conditions to influence the Ir-Hn speciation,</div><div>deuteration levels can range from near exhaustive to selective only for sterically accessible sites.</div><div>Preparative level deuterations of select substrates were performed allowing for procurement of</div><div>>95% deuterated compounds in excellent isolated yields; the catalyst can be regenerated by</div><div>treatment of residues with H2 and is still active for further reactions.</div>

Synthesis and characterization of polyacids from palm acid oil and sunflower oil via addition reaction

2013 ◽  
Vol 23 (24) ◽  
pp. 6616-6619 ◽  
Author(s):  
Ehsan Zeimaran ◽  
Mohammed Rafiq Abdul Kadir ◽  
Hussin Mohd Nor ◽  
Tunku Kamarul ◽  
Ivan Djordjevic
Keyword(s):  
Sunflower Oil ◽  
Addition Reaction ◽  
Synthesis And Characterization ◽  
Acid Oil

scholarly journals Sustainable synthesis and characterization of a bisphenol A-free polycarbonate from a six-membered dicyclic carbonate

2018 ◽  
Vol 9 (27) ◽  
pp. 3798-3807 ◽  
Author(s):  
Pengrui Wang ◽  
Ji Hoon Park ◽  
Mahmoud Sayed ◽  
Tae-Sun Chang ◽  
Amy Moran ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Cyclic Carbonate ◽  
Synthesis And Characterization ◽  
Thermally Stable ◽  
Biocompatible Material ◽  
Optically Transparent ◽  
New Type

A BPA-free polycarbonate, a new type of highly thermally stable, optically transparent and biocompatible material was prepared from a di-cyclic carbonate.

Synthesis and Characterization of a New Coumarin-1,2,3-Triazole Diad

2014 ◽  
Vol 618 ◽  
pp. 170-174
Author(s):  
Hong Qi Li ◽  
Xiu Juan Tian ◽  
Zhen Chen ◽  
Ding Xiao ◽  
Ning Fang ◽  
...  
Keyword(s):  
Click Chemistry ◽  
Biological Activities ◽  
Antitubercular Activity ◽  
Synthesis And Characterization ◽  
Target Compound ◽  
H Nmr ◽  
Mild Conditions ◽  
Ideal Approach ◽  
C Nmr

A new coumarin-1,2,3-triazole diad was designed and synthesized by Pechmann-Duisberg reaction and click chemistry. The three-step synthetic route to the target compound afforded an overall yield of 56%. The structures of the synthesized compounds were characterized by 1H NMR, 13C NMR, IR and mass spectrum. The click chemistry provided an ideal approach for synthesis under mild conditions of coumarin-1,2,3-triazole diads which may exhibit excellent biological activities such as antitubercular activity.

Synthesis and characterization of novel dumbbell shaped copolymers poly(ethylene oxide)x-b-polystyrene-b-poly(ethylene oxide)x with tunable side arms by combination of efficient thiol-ene addition reaction with living polymerization mechanism

RSC Advances ◽  
2015 ◽  
Vol 5 (41) ◽  
pp. 32358-32368 ◽  
Author(s):  
Lingdi Chen ◽  
Jian Huang ◽  
Xuepu Wang ◽  
Chengjiao Lu ◽  
Hongdong Zhang ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Addition Reaction ◽  
Living Polymerization ◽  
Synthesis And Characterization ◽  
Synthetic Route ◽  
Polymerization Mechanism ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Ene Addition

A series of well-defined dumbbell shaped copolymers consisting of PEO and PS segments were successfully synthesized by LAP and ROP mechanisms and the efficient thiol-ene addition reaction. This versatile synthetic route might be used to synthesize other similar copolymers.

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