alkyne การใช้

• The carbanions generated by deprotonation of terminal alkynes are called acetylides.
• Specialty alkynes are prepared by dehydrohalogenation of dihalides or vinyl halides.
• In some cases where alkynes are present, phenols sometimes form:
• Angles for nucleophilic attack on alkynes were reviewed and redefined recently.
• Would an alkyne proton be a sharp peak in proton NMR?
• Vinyl silyl can be made from terminal alkyne or other methods.
• As an alkyne, acetylene is bonded together in a triple bond.
• Alkynes occur in some pharmaceuticals, including the contraceptive noretynodrel.
• Alkynes are reduced only if an alcohol group is nearby.
• In alkene radicals proton abstraction to an alkyne is preferred.
• The carbopalladation step is regioselective when unsymmetrical alkynes are used.
• For example, they undergo Diels-Alder reactions with electrophilic alkynes.
• The selectivity of the hydrozirconation of alkynes has been studied in detail.
• Heck-type cross coupling of phenylboronic acid to alkenes and alkynes.
• Alkynes form many compounds with upon reaction with iron carbonyls.
• Cyclooctatetraene is produced from acetylene via the intermediacy of metal alkyne complexes.
• Via the Fritsch Buttenberg Wiechell rearrangement, alkynes are prepared from vinyl bromides.
• The most commonly used dipolarophiles are alkenes and alkynes.
• These include cyclophanes, Platonic hydrocarbons, pyramidal alkenes, and cyclic alkynes.
• Some alkynes undergo amination in the presence of gold ( III ) catalysts.