New Hydroxamic Acids Derived From Cyclopropane Carboxylic Acid Isobutyric Acid
New Hydroxamic Acids Derived From Cyclopropane Carboxylic Acid Isobutyric Acid
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In our eReader you can find the full English version of the book. Read New Hydroxamic Acids Derived From Cyclopropane Carboxylic Acid Isobutyric Acid Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book New Hydroxamic Acids Derived From Cyclopropane Carboxylic Acid Isobutyric Acid
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After evaporation of the alcohol, a viscous semi-solid mass resulted.
This mass was dissolved in water and treated with a solution of copper acetate. A grass-green copper salt of the hydroxamic acid was precipitated ; it was collected, washed thoroughly with water and dried over sulfuric acid. When the dry copper salt had been pulverized carefully, it was suspended in methanol and a stream of dry hydrogen sulfide was passed through the suspension. The solution was filtered from copper sulfide a...nd the methanol evaporated.
The product was a yellowish crystalline material possessing an odor characteristic of impure hydroxamic acids prepared from their copper salts by this method. Upon recrystallization of it from warm ethyl acetate, pure cyclopropane-monocarboxylic hydroxamic acid was obtained; it melted at 124 with decomposition. When ligroin is 415 added to the ethyl acetate solution, some of the yellow impurity is precipitated together with a part of the hydroxamic acid.
Analyses. Subs.
What to read after New Hydroxamic Acids Derived From Cyclopropane Carboxylic Acid Isobutyric Acid?
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To quickly assess the difficulty of the text, read a short excerpt:
After evaporation of the alcohol, a viscous semi-solid mass resulted.
This mass was dissolved in water and treated with a solution of copper acetate. A grass-green copper salt of the hydroxamic acid was precipitated ; it was collected, washed thoroughly with water and dried over sulfuric acid. When the dry copper salt had been pulverized carefully, it was suspended in methanol and a stream of dry hydrogen sulfide was passed through the suspension. The solution was filtered from copper sulfide a...nd the methanol evaporated.
The product was a yellowish crystalline material possessing an odor characteristic of impure hydroxamic acids prepared from their copper salts by this method. Upon recrystallization of it from warm ethyl acetate, pure cyclopropane-monocarboxylic hydroxamic acid was obtained; it melted at 124 with decomposition. When ligroin is 415 added to the ethyl acetate solution, some of the yellow impurity is precipitated together with a part of the hydroxamic acid.
Analyses. Subs.
What to read after New Hydroxamic Acids Derived From Cyclopropane Carboxylic Acid Isobutyric Acid?
You can find similar books in the "Read Also" column, or choose other free books by Alfred Witherspoon Scott to read onlineMoreLess
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