Thermal Reactions of Fullerenes with Cyclic Organosilicon and Organogermanium Compounds: Silylation and Germylation of C60and C70

2014 ◽  
Vol 25 (6) ◽  
pp. 584-591 ◽  
Author(s):  
Masahiro Kako ◽  
Daiki Inaba ◽  
Kazuya Minami ◽  
Ryosuke Iida ◽  
Tsukasa Nakahodo ◽  
...  
1963 ◽  
Vol 41 (12) ◽  
pp. 2956-2961 ◽  
Author(s):  
M. Lynne Neufeld ◽  
Arthur T. Blades

The thermal reactions of ethylene oxide in the presence of an excess of propylene have been studied as a function of pressure and it has been found that there are two sets of products, acetaldehyde and free radicals, presumably methyl and formyl. These products are believed to arise from an excited acetaldehyde intermediate. Some evidence has been obtained for the occurrence of a surface-catalyzed rearrangement to acetaldehyde but the free radical products are uninfluenced by surface.


1970 ◽  
Vol 66 (0) ◽  
pp. 421-426 ◽  
Author(s):  
J. R. Ebdon ◽  
R. S. Lehrle ◽  
J. C. Robb
Keyword(s):  

1991 ◽  
Vol 69 (3) ◽  
pp. 423-431 ◽  
Author(s):  
Yuan L. Chow ◽  
Xinxin Ouyang

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.


1985 ◽  
Vol 84 ◽  
pp. 111-122 ◽  
Author(s):  
R.M. Berezowski ◽  
K.J.D. Mackenzie

1994 ◽  
Vol 25 (1) ◽  
pp. 713-719 ◽  
Author(s):  
K.P. Kim ◽  
J.V. Michael
Keyword(s):  

1981 ◽  
Vol 22 (37) ◽  
pp. 3629-3632 ◽  
Author(s):  
Mikio Hori ◽  
Tadashi Kataoka ◽  
Hiroshi Shimizu ◽  
Akihiko Tomoto
Keyword(s):  

1981 ◽  
Vol 12 (40) ◽  
Author(s):  
N. B. KAZ'MINA ◽  
E. I. MYSOV ◽  
M. YU. ATIPIN ◽  
A. J. AKHMEDOV ◽  
YU. T. STRUCHKOV
Keyword(s):  

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