Allylic Rearrangements. XLVII. The Silver Ion-assisted Hydrolysis of α- and γ- Methylallyl Chlorides. Preservation of Configuration in Allylic Cations1

1960 ◽  
Vol 82 (6) ◽  
pp. 1376-1382 ◽  
Author(s):  
W. G. Young ◽  
S. H. Sharman ◽  
S. Winstein
Keyword(s):  
Silver Ion ◽  
Hydrolysis Of

Rapid Capture and Hydrolysis of a Sulfur Mustard Gas in Silver-Ion-Exchanged Zeolite Y

2018 ◽  
Vol 10 (47) ◽  
pp. 40651-40660 ◽  
Author(s):  
Ye Rim Son ◽  
Min-Kun Kim ◽  
Sam Gon Ryu ◽  
Hyun Sung Kim
Keyword(s):  
Sulfur Mustard ◽  
Zeolite Y ◽  
Silver Ion ◽  
Mustard Gas ◽  
Hydrolysis Of

Silver ion assisted hydrolysis of 5,5-dichlorotetracyclo-[5.3.1.1.3,904,6]dodecane. A novel γ-lactone formation

1975 ◽  
Vol 16 (31) ◽  
pp. 2685-2688 ◽  
Author(s):  
Tadashi Sasaki ◽  
Shoji Eguchi ◽  
Masato Mizutani
Keyword(s):  
Silver Ion ◽  
Hydrolysis Of

Cyclopropylcarbinyl-oxo-carboniumions. A solvolytic basis for the cyclopropylcarbinyl-oxo-carbonium ion

1970 ◽  
Vol 48 (13) ◽  
pp. 2146-2148 ◽  
Author(s):  
Bert Fraser-Reid ◽  
Bruno Radatus
Keyword(s):  
Silver Ion ◽  
Resonance Contribution ◽  
Conjugated Diene ◽  
Carbonium Ion ◽  
Neutral Media ◽  
Ion Assistance ◽  
Hydrolysis Of

Hydrolysis of 4,6-O-benzylidene-3-deoxy-3-C-(iodomethyl)-D-allal (1) in neutral buffered medium with or without silver ion assistance gives the cyclopropyl aldehyde 4 as the only product. Methanolysis of 1 gives an equal mixture of the α and β anomers of methyl 4,6-O-benzylidene-2,3-C-methylene-2,3-dideoxy-D-allopyranosides (6 and 7). These results indicate that the cyclopropylcarbinyl-oxo-carboniumion (2), is produced with unit efficiency in solvolyses in neutral media, and the formation of both diasteriomers (6 and 7) requires the complete absence of bicyclobutonium ion (9) resonance contribution to the stabilized intermediate, and implies a strong contribution from the oxo-carbonium ion 10. In basic media compound 1 undergoes quantitative dehydroiodination to the conjugated diene, 4,6-O-benzylidene-1,2,3-trideoxy-3-C-methylene-D-ribo-hex-1-enopyranose(8).

The effect of silver ion on the alkaline hydrolysis of thiazolidines

1973 ◽  
Vol 14 (15) ◽  
pp. 1285-1288 ◽  
Author(s):  
R.R. Luhowy ◽  
R.F.W. Cieciuch ◽  
F. Meneghini
Keyword(s):  
Alkaline Hydrolysis ◽  
Silver Ion ◽  
Hydrolysis Of

scholarly journals Studies on the Hydrolysis of Metal Ions. Part 29. The Hydrolysis of the Silver Ion, Ag+, in Acid Self-medium.

1960 ◽  
Vol 14 ◽  
pp. 711-716 ◽  
Author(s):  
George Biedermann ◽  
Sirkka Hietanen ◽  
Bengt Lindberg ◽  
R. M. Dodson
Keyword(s):  
Metal Ions ◽  
Silver Ion ◽  
Hydrolysis Of

Fine Structural Localization of Acyltransferases Involved in Lipid Synthesis in Intestinal Mucosa.

1970 ◽  
Vol 28 ◽  
pp. 54-55
Author(s):  
R. J. Barrnett ◽  
J. A. Higgins
Keyword(s):  
Smooth Endoplasmic Reticulum ◽  
Lipid Synthesis ◽  
Mucosal Cell ◽  
Structural Localization ◽  
Morphological Studies ◽  
Mucosal Cells ◽  
Initial Appearance ◽  
Sh Group ◽  
Hydrolysis Of ◽  
Intestinal Mucosal Cells

The main products of intestinal hydrolysis of dietary triglycerides are free fatty acids and monoglycerides. These form micelles from which the lipids are absorbed across the mucosal cell brush border. Biochemical studies have indicated that intestinal mucosal cells possess a triglyceride synthesising system, which uses monoglyceride directly as an acylacceptor as well as the system found in other tissues in which alphaglycerophosphate is the acylacceptor. The former pathway is used preferentially for the resynthesis of triglyceride from absorbed lipid, while the latter is used mainly for phospholipid synthesis. Both lipids are incorporated into chylomicrons. Morphological studies have shown that during fat absorption there is an initial appearance of fat droplets within the cisternae of the smooth endoplasmic reticulum and that these subsequently accumulate in the golgi elements from which they are released at the lateral borders of the cell as chylomicrons.We have recently developed several methods for the fine structural localization of acyltransferases dependent on the precipitation, in an electron dense form, of CoA released during the transfer of the acyl group to an acceptor, and have now applied these methods to a study of the fine structural localization of the enzymes involved in chylomicron lipid biosynthesis. These methods are based on the reduction of ferricyanide ions by the free SH group of CoA.

Lattice imaging and pore structure of β ferric oxyhydroxide

1978 ◽  
Vol 36 (1) ◽  
pp. 264-265
Author(s):  
T. Baird ◽  
J.R. Fryer ◽  
S.T. Galbraith
Keyword(s):  
Electron Microscopy ◽  
Room Temperature ◽  
Bulk Material ◽  
Model Structure ◽  
Bulk Crystals ◽  
Lattice Imaging ◽  
Thin Sections ◽  
Ferric Oxyhydroxide ◽  
Resolution Electron ◽  
Hydrolysis Of

Introduction Previously we had suggested (l) that the striations observed in the pod shaped crystals of β FeOOH were an artefact of imaging in the electron microscope. Contrary to this adsorption measurements on bulk material had indicated the presence of some porosity and Gallagher (2) had proposed a model structure - based on the hollandite structure - showing the hollandite rods forming the sides of 30Å pores running the length of the crystal. Low resolution electron microscopy by Watson (3) on sectioned crystals embedded in methylmethacrylate had tended to support the existence of such pores.We have applied modern high resolution techniques to the bulk crystals and thin sections of them without confirming these earlier postulatesExperimental β FeOOH was prepared by room temperature hydrolysis of 0.01M solutions of FeCl3.6H2O, The precipitate was washed, dried in air, and embedded in Scandiplast resin. The sections were out on an LKB III Ultramicrotome to a thickness of about 500Å.

Sign in / Sign up

Export Citation Format

Share Document