ChemInform Abstract: Modulation of the Reactivity Profile of IBX by Ligand Complexation: Ambient Temperature Dehydrogenation of Aldehydes and Ketones to α,β-Unsaturated Carbonyl Compounds.

ChemInform ◽  
2010 ◽  
Vol 33 (31) ◽  
pp. no-no
Author(s):  
K. C. Nicolaou ◽  
Tamsyn Montagnon ◽  
Phil S. Baran
2005 ◽  
Vol 2005 (10) ◽  
pp. 659-660 ◽  
Author(s):  
Peipei Sun ◽  
Zhixin Hu

Aldehydes or ketones reacted with acetic anhydride in dichloromethane at ambient temperature to produce gem-diacetates in good to excellent yields in the presence of gallium triiodide, which was generated in situ from gallium and iodine. This catalyst was also useful for the deprotection of carbonyl compounds in the presence of water.


1999 ◽  
Vol 23 (7) ◽  
pp. 434-435
Author(s):  
Mohammed M. Hashemi ◽  
Yousef Ahmadi Beni

Copper(I) Chloride adsorbed on Kieselguhr in the presence of oxygen catalyses oxidation of alkyl halides and alkyl tosylates to the aldehydes and ketones in high yields.


ACS Catalysis ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 7763-7772 ◽  
Author(s):  
Chao Xie ◽  
Jinliang Song ◽  
Manli Hua ◽  
Yue Hu ◽  
Xin Huang ◽  
...  

2012 ◽  
Vol 25 (1) ◽  
pp. 62-70 ◽  
Author(s):  
Md Anwarul Hoque ◽  
Md Arzu Miah ◽  
Md Nurul Abser ◽  
Abul K Azad ◽  
Kamrun N Khan ◽  
...  

Treatment of 2-Mercaptothiazoline, 2-Mercaptobenzimidazole, 2-Mercapto-1- methylimidazole with [M2(CO)10] (M = Re and Mn) at ambient temperature in presence of decarbonylating reagent Me3NO give the complexes [Mn2(?-?2-C3H4NS2)2(CO)6] (1), [Re2(?-?2-C3H4NS2)2(CO)6] (2), [Mn2(?-?2-C7H5SN2)2(CO)6] (3), [Re2(?-?2- C7H5SN2)2(CO)6] (4), [Re2(?-?2-C4H5N2S)2(CO)6] (5) and [Re2(?1-C4H5N2SH)(CO)9] (6) respectively. All the compounds have been characterized by IR, 1H NMR and mass spectral data. The heterocyclic ligands are expected to be coordinated to two or single metal atom through the nitrogen and sulfur atoms or via only sulfur atom.DOI: http://dx.doi.org/10.3329/jbcs.v25i1.11775 Journal of Bangladesh Chemical Society, Vol. 25(1), 62-70, 2012> 


2018 ◽  
Vol 16 (6) ◽  
pp. 924-935 ◽  
Author(s):  
A. Castán ◽  
R. Badorrey ◽  
J. A. Gálvez ◽  
P. López-Ram-de-Víu ◽  
M. D. Díaz-de-Villegas

Novel bifunctional pyrrolidine-based organocatalysts applicable for the asymmetric Michael addition of aldehydes and ketones to nitroolefins have been developed.


2008 ◽  
Vol 9 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Hong-Bing Ji ◽  
Yue-Ying Huang ◽  
Li-Xia Pei ◽  
Xing-Dong Yao

1978 ◽  
Vol 56 (3) ◽  
pp. 308-315 ◽  
Author(s):  
Gerald A. MacAlpine ◽  
John Warkentin

Thermolyses in polar solvents, of Δ3-1,3,4-oxadiazolin-2-ones or 2-phenylimino-Δ3-1,3,4-oxadiazolines derived from α,β-epoxyketones, yields acetylenic carbonyl compounds. Good yields of acetylenic aldehydes and ketones are obtained for those cases in which the epoxide is ring fused. Extension to acyclic cases failed primarily due to predominance of a parallel decomposition pathway. The method complements the procedures developed by Eschenmoser and co-workers for the conversion of, α,β-epoxyketones into acetylenic carbonyl compounds.


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