MedicalMnemonics.com | Browse

Benzene ring: effects of substituents on further additions

"Benzene likes to ROMP. We HOPED she's be safe, but now she's knocked up. ADOPt or WEDD'M?":
ROMP: Substituents in order: R-group, Ortho, Meta, Para.
HOPED: Halogens are Ortho, Para, Electron withdrawing, Deactivating.
ADOPt: Addititive substituents Direct Ortho & Para.
WEDD'M: Withdrawing Electrons Deactivates, Directs Meta.
Show Details / Rate It
---Sabra

Cathode: what happens during electrolysis

Current Carries Cations to the Cathode for reduCtion.
Show Details / Rate It
---Andreas Efstathiades

Cis/trans (geometric) isomer nomenclature

The letter "Z" is written in a zigzag way. If you draw a vertical line splitting it down the middle then its the same halves (same sides of double bond). The letter "E" is written differently so a vertical line splits it into different halves (different sides of double bond).

Show Details / Rate It
---Peter J. Kos

Cis/trans (geometric) isomers: arrangement of functional groups

Cis starts with a C and the functional groups form a C.
Trans, therefore is the other one by default.

Show Details / Rate It
---Spencer Oates

Acids: Lewis acid vs. Bronsted acid

BAD LATE:
BAD: Bronsted Acid Donates hydrogens
LATE: Lewis Acid Takes Electrons
Show Details / Rate It
---Gilbert Siu UMDNJ-School of Osteopathic Medicine