SEARCH Articles Figures Tables 2-Substituted alkyl 3- 3 ALKYL 1 ALKYNES Alkyl substitute Alkyl with mono-substituted alkynes Alkynes alkyl-substituted Alkynes alkyl-substituted Alkynes alkylated Alkynes alkylation Rotation about Sigma (a) Bonds in Acyclic Alkanes, Alkenes, Alkynes, and Alkyl-Substituted Arenes Substituted alkynes Substitution alkylation