Examlex
Using retrosynthetic synthesis, determine which compound(s) could lead to the alkene shown below in a single step:
Proximity
The closeness or distance between people or objects, which can influence their interactions and perceptions of one another.
Auditory Rhythm
Temporal patterns in sound that are perceived by the auditory system, important in music and speech processing.
Reversible Figure
A visual pattern that easily allows more than one interpretation, in some cases changing the specification of figure and ground, in other cases changing the perceived organization in depth.
Lighter
A portable device used to generate a flame for the purpose of lighting something, such as a cigarette or candle.
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