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Hydrohalogenation of Alkynes

…10.1021/ja00040a077 The short length of this JACS communication belies the difficulty of this experimental work! This paper describes an X-ray structure of the addition complex between HCl and an alkyne,…

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Hydration and Oxymercuration of Alkynes

…Also Be “Hydrated” via Oxymercuration (HgSO4/H2O) Hydroboration Of Alkynes (R2BH) Occurs With Anti-Markovnikov Selectivity, Giving Aldehydes From Terminal Alkynes Beware: Depending On The Alkyne, Mixtures Of Products Can Be Obtained…

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Alkyne Hydroboration With “R2BH”

…hydroboration of alkynes, and it often appears in class notes and exams, in practice it’s more common to use dialkylboranes (R2BH) for hydroboration of alkynes. In a dialkylborane, two of…

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Allylic Bromination

completion of Propagation Step #1.[Note 3].This keeps the concentration of Br2 low and allows the free-radical reaction to out-compete the alkene addition reaction.   In all other respects the allylic…

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Bonus Topic: Allylic Rearrangements

…There is an example of an ‘allylic rearrangement’ here – Prof. Kharasch shows that reaction of 3-bromo-1-butene with HBr under free-radical conditions (peroxides) can give 1,3-dibromobutane. This would be obtained…

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Organic Chemistry For the MCAT

…demonstrate the ability to think independently and to reason critically. As a result the MCAT examination does more than simply test an examinee’s knowledge of a particular subject. One should…

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