Palladium(II)-catalyzed exchange and isomerization reactions. I. Exchange of enol acetates with acetic acid catalyzed by palladium(II) chloride

1971 ◽  
Vol 93 (16) ◽  
pp. 3853-3859 ◽  
Author(s):  
Patrick M. Henry
Keyword(s):  
Acetic Acid ◽  
Enol Acetates ◽  
Acid Catalyzed

Kinetics of the acid-catalyzed isomerization of phenylbutenes in glacial acetic acid

1972 ◽  
Vol 94 (4) ◽  
pp. 1247-1249 ◽  
Author(s):  
R. S. Schwartz ◽  
H. Yokokawa ◽  
E. W. Graham
Keyword(s):  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Acid Catalyzed ◽  
Kinetics Of

The photoaddition of 1,3-diketonatoboron difluorides with benzene derivatives

1991 ◽  
Vol 69 (3) ◽  
pp. 423-431 ◽  
Author(s):  
Yuan L. Chow ◽  
Xinxin Ouyang
Keyword(s):  
Crystallographic Analysis ◽  
Secondary Oxidation ◽  
Enol Ethers ◽  
X Ray ◽  
Thermal Reactions ◽  
Secondary Reactions ◽  
Enol Acetates ◽  
Orthogonal Orientation ◽  
Acid Catalyzed ◽  
Boron Difluoride

The boron difluoride complexes of 2-acetylcyclohexanone, 2-acetylcyclopentanone, and acetylacetone (abbreviated as ACHBF2, ACPBF2, and AABF2) were irradiated in the presence of benzene to give the 1:1 adducts as the primary photoadducts; for certain BF2 complexes, toluene, chlorobenzene, benzonitrile, and methyl benzoate were also used as substrates. The 1,5-diketone photoadducts were assumed to form by a [2+2] photocycloaddition followed by cyclobutane opening and hydrolysis to give 1,2 adducts. They undergo a variety of secondary thermal reactions, probably acid catalyzed, to give enol ethers, enol acetates, acetophenones, and ketonylacetophenones. The efficiency of these secondary reactions determines the final products. Photoaddition with a monosubstituted benzene preferentially occurs at the 3,4 bond without regioselectivity. Under oxygen, ACHBF2 photolytically reacts with benzene to give a secondary oxidation product of a 10-membered cyclic alkylphe-none, which is proven by X-ray crystallographic analysis to have the benzene ring and carbonyl group in orthogonal orientation. It is shown that the singlet excited state ACHBF2 initiates the photoaddition, probably through the formation of the benzene exciplex, which could be detected by its emission. While the Stern–Volmer rates are small, the quantum yield of photoaddition products is as high as 0.12–0.19 under limiting conditions. Key words: [2+2] photocycloaddition, non-planar alkanophenone, macrocyclic alkanophenone, boron difluoride complexes, photoaddition to benzenes.

Study of Acetic Acid-Catalyzed Nanocomposite Organic/Inorganic Ureasil Sol−Gel Ionic Conductors

Langmuir ◽  
2003 ◽  
Vol 19 (18) ◽  
pp. 7587-7591 ◽  
Author(s):  
E. Stathatos ◽  
P. Lianos ◽  
B. Orel ◽  
A. Surca Vuk ◽  
R. Jese
Keyword(s):  
Acetic Acid ◽  
Sol Gel ◽  
Ionic Conductors ◽  
Acid Catalyzed

Ground and Excited-State Acetic Acid Catalyzed Double Proton Transfer in 2-Aminopyridine†

2003 ◽  
Vol 107 (18) ◽  
pp. 3244-3253 ◽  
Author(s):  
Fa-Tsai Hung ◽  
Wei-Ping Hu ◽  
Tsung-Hui Li ◽  
Chung-Chih Cheng ◽  
Pi-Tai Chou
Keyword(s):  
Acetic Acid ◽  
Excited State ◽  
Proton Transfer ◽  
Double Proton Transfer ◽  
Acid Catalyzed

scholarly journals Salicylic Acid‐Catalyzed Arylation of Enol Acetates with Anilines

2018 ◽  
Vol 360 (14) ◽  
pp. 2773-2778 ◽  
Author(s):  
Diego Felipe‐Blanco ◽  
Jose C. Gonzalez‐Gomez
Keyword(s):  
Salicylic Acid ◽  
Enol Acetates ◽  
Acid Catalyzed
Sign in / Sign up

Export Citation Format

Share Document