honestty21
21.11.2019 •
Chemistry
1-propynyllithium reacts with (r,r)-2,3-dimethyloxacyclopropane in a stereoselective reaction. draw a curved arrow mechanism and the missing intermediate and product, clearly showing stereochemistry with a wedge and hashed bond at each stereocenter.
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Ответ:
Molten lead bromide
Explanation:
PbBr 2(l), is an electrolyte. During electrolysis: Pb 2+ ions gain electrons at the cathode and become Pb atoms. Br - ions lose electrons at the anode and become Br atoms, which pair up to form Br 2 molecules.