Zig-Zag Representation
Definition: A skeletal line drawing convention where carboncarbon bonds are drawn in a zig-zag pattern, implicitly showing sp geometry.
Context: Simplifies organic structure representation and emphasizes chain conformation.
Example: n-Hexane drawn as a zig-zag carbon backbone.
Related Terms: Fischer Projection; Newman Projection; Sawhorse Projection.
Reference: Clayden et al., Organic Chemistry (2012).
Zimmerman–Traxler Model
Chair-like transition state model for aldol reactions linking geometry to syn/anti outcome.
Context: Guides stereochemical planning in polyketide synthesis.
Example: Evans oxazolidinone-controlled aldol.
Related Terms: Aldol Reaction, Chiral Auxiliary.
Reference: Zimmerman & Traxler, JACS (1957).