In a series of seven steps, (S)-malic acid is converted to the bromoepoxide shown on theright in 50% overall yield. This synthesis is enantioselective!of the stereoisomers pos-sible for the bromoepoxide, only one is formed.
CHM 102: Introductory Organic Chemistry Hydrocarbon Alkane is a hydrocarbon that has only single bonds. Alkanes has a general formula of Cn 2n+2. An alkane in the shape of a ring is called a cycloalkane. Alkene is a compound that has at least one double bond. Alkene general formula is n 2n. • Alkyne is a compound that has at least one triple bond. A straight chain alkyne with one triple bond has the formula n 2n − 2 H H H H H H H C H H C C C H H C C H H H H H H H Methane (4H ) Ethane (CH -CH ) Propane (3H 2CH 3CH ) 3 3 H H H H H H H H H H C C C C H H C C C C C H H H H H Butane (CH -CH -CH -CH ) H H H H H 3 2 2 3 Pentane 3CH2-C2 -C2 -3H -CH ) Nomenclature of alkane Identify the parent chain (longest carbon chain) and the substituents (groups attached to the parent chain). Identify the ‘branches’ on the longest carbon chain and name them accordingly. Number the carbon atoms on the longest carbon chain to describe the positions of the branches – use the lowest numbers possible. Each substituent is given a n