- The [4+4]
Photocycloaddition is a
cycloaddition reaction in
which two
unsaturated molecules connect via four
atoms from each
molecule (hence "4 + 4") to...
- The Woodward–Hoffmann
rules (or the
pericyclic selection rules) are a set of
rules devised by
Robert Burns Woodward and
Roald Hoffmann to
rationalize or...
-
utility and form, is a
photochemical reaction,
specifically a 2+2
photocycloaddition,
which forms four-membered
oxetane rings from an
excited carbonyl...
-
Motors 2+2 (TV channel), a
national Ukrainian-language TV
channel 2+2
photocycloaddition, a
photochemical reaction 2 + 2 = 5, a
slogan used in
George Orwell's...
-
compounds of
various lengths. The
mechanisms often involve [2 + 2]
photocycloadditions, a
useful reaction for
creating strained 4-membered rings. Naturally...
- emplo**** to
avoid competitive dimerization of the enone.
Reverse [2+2]
photocycloaddition,
decomposition of 1,2-dioxetanedione, is
stated as the
mechanism that...
-
formation of
cyclobutane and
cyclobutanone via
intramolecular 2+2
photocycloadditions.
Tethering ensures formation of a multi-cyclic system. The length...
-
appropriately intercalated adjacent to a
pyrimidine base, a four-center
photocycloaddition reaction can lead to the
formation of
either of two cyclobutyl-type...
- very
little heat. The
reason for this is that the
reverse [2 + 2]
photocycloadditions of 1,2-dioxetanedione is a
forbidden transition (it
violates Woodward–Hoffmann...
-
exposed to
sunlight in
aqueous solutions,
isophorone undergoes 2+2
photocycloaddition to give
three isomeric photodimers (Figure).
These "****tomers" are...
