Annelation of organoboranes derived from geraniol

1976 ◽  
Vol 29 (3) ◽  
pp. 617 ◽  
Author(s):  
R Murphy ◽  
RH Prager
Keyword(s):  
Carbon Monoxide ◽  
Silver Nitrate ◽  
Electrophilic Reagent ◽  
Bromo Derivative

Alicyclic products have been obtained from geraniol derivatives in four ways: carbonylation of the intermediate borane either by treatment with carbon monoxide under pressure or by rearrangement of the cyanoborate under the influence of an electrophilic reagent; coupling under the influence of alkaline silver nitrate or by rearrangement of the bromo derivative obtained by photochemical bromination. The methods are compared and the nature of the products studied.

Cyclooctatetraenoquinones. II. The synthesis and transformations of compounds related to dibenzo[a,e]cyclooctene-5,6,11(12H)-trione

1970 ◽  
Vol 48 (5) ◽  
pp. 796-804 ◽  
Author(s):  
Peter Yates ◽  
Errol G. Lewars
Keyword(s):  
Carbon Monoxide ◽  
Hydrogen Bromide ◽  
Selenium Dioxide ◽  
Ethyl Bromide ◽  
Bromo Derivative

Bromination of 11-acetoxydibenzo[a,e]cycloocten-5(6H)-one (6) gave the 6-bromo derivative (8), which on further bromination gave a hydrogen bromide adduct (12 or 13) of 6,6,12-tribromodibenzo[a,e]cyclooctene-5,11(6H,12H)-dione (14). Treatment of this adduct with aqueous-ethanolic ammonia followed by sublimation gave 11-oxoindeno[1,2-c]isocoumarin (4), not dibenzo[a,e]cyclooctene-5,6,11(12H)-trione (3) as earlier suggested. The conversion of 12 or 13 to 4 has been shown to involve the formation of 3-bromo-2-(o-carboethoxyphenyl)indone (17), which gave 4 and ethyl bromide on being heated at 180°. Oxidation of dibenzo[a,e]cyclooctene-5,11(6H,12H)-dione with selenium dioxide gave a bimolecular product 25 considered to be derived by loss of carbon monoxide from the dimer of dibenzo[b,ƒ]pentalene-5,10-dione (27), a selenium-containing product, 28, and the hydrate 29 of 3.

A rapid silver-impregnation technique on ultra-thin sections for Electron Microscopy

1993 ◽  
Vol 51 ◽  
pp. 242-243
Author(s):  
K. Chien ◽  
R.C. Heusser ◽  
M.L. Jones ◽  
R.L. Van de Velde
Keyword(s):  
Electron Microscopy ◽  
Silver Nitrate ◽  
Silver Impregnation ◽  
Sodium Borate ◽  
Renal Diseases ◽  
Distilled Water ◽  
Thin Sections ◽  
Impregnation Technique ◽  
Centrifuge Tube ◽  
Simplified Procedure

Silver impregnation techniques have been used for the demonstration of the complex carbohydrates in electron microscopy. However, the silver stains were believed to be technically sensitive and time consumming to perform. Currently, due to the need to more specifically evaluate immune complex for localization in certain renal diseases, a simplified procedure in conjunction with the use of the microwave has been developed and applied to renal and other biopsies. The procedure is as follows:Preparation of silver methenamine solution:1. 15ml graduated, clear polystyrene centrifuge tube (Falcon, No. 2099) was rinsed once with distilled water.2. 3% hexamethylene tetramine (methenamine) was added into the centrifuge tube to the 6ml mark.3. 3% silver nitrate was added slowly to the methenamine to the 7ml mark while agitating. (Solution will instantly turn milky in color and then clear rapidly by mixing. No precipitate should be formed).4. 2% sodium borate was added to the solution to the 8ml mark, mixed and centrifuged before use.

Carbon monoxide poisoning

2000 ◽  
Vol 12 (4) ◽  
pp. 354-357
Author(s):  
David R Smart ◽  
Paul D Mark
Keyword(s):  
Carbon Monoxide ◽  
Carbon Monoxide Poisoning

Transformation of Cooperative Free Energies between Ligation Systems of Hemoglobin:  Resolution of the Carbon Monoxide Binding Intermediates†

Biochemistry ◽  
1996 ◽  
Vol 35 (3) ◽  
pp. 704-718 ◽  
Author(s):  
Yingwen Huang ◽  
Gary K. Ackers
Keyword(s):  
Carbon Monoxide ◽  
Free Energies ◽  
Carbon Monoxide Binding

EPA Retains Limits On Carbon Monoxide

2011 ◽  
pp. 012511122338
Author(s):  
Glenn Hess
Keyword(s):  
Carbon Monoxide

Carbon monoxide in the home

2003 ◽  
Keyword(s):  
Carbon Monoxide

Deep-diving seals reveal secrets of carbon monoxide

Nature ◽  
2014 ◽  
Author(s):  
Jessica Marshall
Keyword(s):  
Carbon Monoxide ◽  
Deep Diving

Dangers of Carbon Monoxide

1889 ◽  
Vol 27 (703supp) ◽  
pp. 11238-11238
Keyword(s):  
Carbon Monoxide

Carbon Monoxide and the Toxicity of Tobacco Smoke

1908 ◽  
Vol 66 (1702supp) ◽  
pp. 107-107
Keyword(s):  
Carbon Monoxide ◽  
Tobacco Smoke

Synthesis of graphitic carbon nitride nanosheets decorated spherical‐like nickel oxide composites for carbon monoxide gas‐sensing application

2019 ◽  
Vol 14 (14) ◽  
pp. 1410-1413
Author(s):  
Xiaoze Li ◽  
Wendi Tian ◽  
Jianbo Jia ◽  
Jianliang Cao ◽  
Zhanying Zhang ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Nickel Oxide ◽  
Carbon Nitride ◽  
Gas Sensing ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Sensing Application ◽  
Carbon Nitride Nanosheets ◽  
Oxide Composites
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