Named reactions and mechanisms taught in a college organic chemistry sequence.
44 cards · basic cards · AI-written, checked twice. Edit anything.
- SN2 reaction: What is the stereochemical outcome?
Show answer
Inversion of configuration (Walden inversion)
- SN2 rate law: rate depends on what concentrations?
Show answer
Rate = k[RX][Nu-]; first order in alkyl halide and first order in nucleophile
- SN1 rate law: rate depends on what concentrations?
Show answer
Rate = k[RX]; first order in alkyl halide only
- SN1 mechanism: What is the carbocation intermediate called?
Show answer
Carbocation (or carbenium ion)
- SN2 mechanism: How many steps does it have?
Show answer
One step (concerted, single transition state)
- SN1 mechanism: How many steps does it have?
Show answer
Two steps: ionization (slow) and nucleophilic attack (fast)
- For SN2, which substrate is most reactive: primary, secondary, or tertiary alkyl halide?
Show answer
Primary alkyl halide
- For SN1, which substrate is most reactive: primary, secondary, or tertiary alkyl halide?
Show answer
Tertiary alkyl halide
- SN2 reactions: Which solvent increases the reaction rate - protic or aprotic?
Show answer
Aprotic (polar aprotic), such as DMSO or DMF
- SN1 reactions on a stereocenter produce what instead of a single stereoisomer?
Show answer
A racemic mixture (equal mixture of R and S enantiomers)
- E2 elimination: What is the stereochemical requirement for H and leaving group?
Show answer
Anti-periplanar (180 degrees apart, opposite sides of the C-C bond)
- E2 rate law: rate depends on what concentrations?
Show answer
Rate = k[RX][B]; first order in alkyl halide and first order in base
- E1 rate law: rate depends on what concentrations?
Show answer
Rate = k[RX]; first order in alkyl halide only
- E1 mechanism: What is the intermediate formed?
Show answer
A carbocation
- With a primary substrate and strong base at high temperature, which reaction dominates: E2 or SN2?
Show answer
E2 (elimination)