
When I see this I think of Exxon.

For those of you who happen to have a "Valentine" who doesn’t make you miserable, appreciate it because it won’t last.
In more upbeat news, Liza wants to be your Valentine...

I shall follow up with some more
NSFW images of Liza at Nuclear Tentacles.

Sister Suvi - "Longlegs"

The
aldol reaction is an important
carbon-carbon bond formation
reaction in
organic chemistry. In its usual form, it involves the
nucleophilic addition of a
ketone enolate to an
aldehyde to form an aldol (β-hydroxy ketone), a structural unit found in many naturally occurring molecules and pharmaceuticals. Sometimes, the aldol addition product
loses a molecule of water during the reaction to form an
α,β-unsaturated ketone. This is called an
aldol condensation. The aldol reaction was discovered independently by
Charles-Adolphe Wurtz and by
Alexander Porfyrevich Borodin in 1872. Borodin observed the aldol dimerization of 3-hydroxybutanal from
acetaldehyde under acidic conditions. The aldol reaction is used widely in the large scale production of commodity chemicals such as
pentaerythritol. The aldol structural motif is especially common in
polyketides, a class of
natural products from which many pharmaceuticals are derived, including the potent immunosuppressant
FK506, the
tetracycline antibiotics, and the antifungal agent
amphotericin B. Extensive research on the aldol reaction has produced highly efficient methods which enable the otherwise challenging
synthesis of many
polyketides in the laboratory. (
more...)
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