Choose the sequence of descriptions that describes the indicatedmechanism for th
ID: 678347 • Letter: C
Question
Choose the sequence of descriptions that describes the indicatedmechanism for the formation of acetone cyanohydrin from acetone andhydrogen cyanide under catalytic base conditions.
Step 1 - the encounter between acetone and the cyanide ion.
A mechanism arrow, originating at 2---Select---the lone pair of the cyanide ion N,the carbonyl C,the C-N pi bond,the lone pair of the cyanide ion C,the carbonyl O, points to 3---Select---the carbonyl Cthe cyanide ion Cthe C-N pi bondthe cyanide ion Nthe C-O pi bond indicating that 4---Select---the sigma bond is transformed into a lonepairthe lone pair is transformed into a pibondthe sigma bond is transformed into another sigmabondthe lone pair is transformed into a sigmabondthe lone pair is transformed into another lonepairthe sigma bond is transformed into a pibond while another mechanism arrow, originating at5---Select---the lone pair of the cyanide ion N,the carbonyl O,the lone pair of the cyanide ion C,the carbonyl C,the C-N pi bond,the C-O pi bond, points to 6---Select---the cyanide ion Cthe C-N pi bondthe carbonyl Othe cyanide ion Nthe carbonyl Cthe C-O pi bond indicating that 7---Select---the sigma bond is transformed into lonepair.the sigma bond is transformed into a pibond.the pi bond is transformed into a lonepair.the sigma bond is transformed into another sigmabond.the lone pair is transformed into a sigmabond.the lone pair is transformed into a pibond.the lone pair is transformed into another lonepair.
Step 2 - the encounter between the major organic product fromstep one and the hydrogen cyanide molecule.
A mechanism arrow, originating at 8---Select---the C-N pi bond,the lone pair of the O of the alkoxideion,the lone pair of the cyanide ion N,the H of the HCN,the carbonyl C,the lone pair of the cyanide ion C,the lone pair of the HCN N atom, points to 9---Select---the former carbonyl Cthe H of the HCNthe lone pair of the cyanide ion Cthe alkoxide oxygenthe O-C pi bondthe lone pair of the cyanide ion Nthe C-N pi bondthe lone pair of the HCN N atom indicating that 10---Select---the lone pair is transformed into a pibondthe sigma bond is transformed into a lonepairthe lone pair is transformed into a sigmabondthe sigma bond is transformed into another sigmabondthe sigma bond is transformed into a pibondthe lone pair is transformed into another lonepair while another mechanism arrow, originating at11---Select---the H of the HCN,the C-N pi bond,the lone pair of the cyanide ion C,the lone pair of the HCN N atom,the C-O pi bond,the carbonyl C,the lone pair of the cyanide ion N,the H - C bond of the HCN,the lone pair of the O of the alkoxideion, points to 12---Select---the O of the alkoxide ionthe C-N pi bondthe carbonyl Cthe C of the HCNthe C-O pi bondthe N of the HCNthe H of the HCN indicating that 13---Select---the sigma bond is transformed into a lonepair.the lone pair is transformed into a sigmabond.the sigma bond is transformed into another sigmabond.the lone pair is transformed into another lonepair.the sigma bond is transformed into a pibond.the lone pair is transformed into a pibond.
Explanation / Answer
Choose the sequence of descriptions that describes the indicatedmechanism for th