orgo chapter 9 (alkynes

terminal alkyne can be prepared by treating a dihalide with what

xs NaNH2?NH3 and H2O

terminal alkyne reaction with one eq HX

leads to alkene with X on more substituted position

terminal alkyne reaction with excess HX

leads to alkane with two X

halogenation of alkynes reagents

X2 and CCl4

halogenation of alkynes

takes alkene with x on same or different sides, different sides is major product

acid catalyzed hydration of alkynes 

makes enol which tautomers to ketone

hydroboration-oxidation of alkynes

adds OH to less substituted side of triple bond, than becomes aldehyde

reduction of alkyne reagent

H2 Pt

reduction of alkyne 

adds h to both sides of triple bond 

H2 and lindlars cat

stops at alkene does allow allow to go to alkane

how to make trans alkene

Na, NH3 (l)

how to make cis alkene

H2 and lindlar’s cat

how to make alkane

H2 and Pt

ozonolysis

splits at triple bond

what decomposes to co2 and water 

c with two OH and double bonded O

how to all something to a triple bond

NaNH2 and the second step is what you want to add with a Br and I on the end