Synthesis of Alkynes

Hydration of an alkyne

will make a ketone right where the triple bond was

• makes a mixture of products if the starting material is an internal alkyne, if SM is symmetrical alkyne only see one product

Reacting an alkyne with H2SO4, H20 / HgSO4 will result in what reaction

hydration of alkyne

Hydroboration of an alkyne

results in formation of an aldehyde

if you react an alkyne with R2BH/ H2O2 and NaOH what reaction will occur

Hydroboration

if you react an alkyne with 9-BBN/ H2O2 and NaOH what reaction will occur

Hydroboration

if you react an alkyne with Disiamylborane/ H2O2 and NaOH what reaction will occur

Hydroboration

if you react a dihalide with 1)xsNaNH2/NH3/ 2)H2O what will occur

dihalide will form an alkyne

if you react an alkyne with excess HX what will occur?

a dihalide will form

if you react an alkyne with excess X₂/CCl₄ what reaction would occur?

halogenation of an alkane

ozonolysis of alkynes

produces carboxylic acids and a terminal carbon would be turned into carbon dioxide

alkyation of a terminal alkyne

use a strong base (NaNH2) to deprotonate a terminal alkyne. the resulting alkyne works as a nucleophile

if you react an alkene with 1)NaNH2/ 2)EtI or MeI what would occur

alkylation of a terminal alkyne

If you react an alkyne with H2, Pt what product would you get?

an alkane

If you react an alkyne with H2, Lindlars what product would you get?

a cis alkene

If you react an alkyne with Na, NH3 what product would you get?

a trans alkene

What product would you get if you added HaNH3(l) to an alkane

a trans alkene