-
isomeric parent heterocycles are 1,2-
dithiane, 1,3-
dithiane and 1,4-
dithiane. They are all
colorless solids. 1,2-
Dithiane is an
organosulfur compound with...
- is
converted into a
dithiane or a thioacetal. In
synthon terminology the
ordinary carbonyl group is an acyl
cation and the
dithiane is a
masked acyl anion...
- for
acylation by
converting aldehydes into
lithiated 1,3-
dithianes. The
lithiated 1,3-
dithianes serves as an acyl
anion equivalent,
undergoing alkylation...
-
reversible formation of
dithianes. A
prototypical reaction is its
formation of 1,3-
dithiane from formaldehyde. The
reactivity of this
dithiane illustrates the...
- The
formations of
dithianes can be
accomplished with a
Lewis acid (scheme 7) or
directly from
carbonyl compounds. The pKa of
dithianes is approximately...
-
carbonyl group is
protected with 1,3-propanedithiol 2,
producing a
dithiane 3. The
dithiane is
deprotonated using n-Butyllithium in tetrahydrofuran, and alkylated...
-
acetylenes (H−CC−R),
methyl sulfides (H−CH2SR),
thioacetals (H−CH(SR)2, e.g.
dithiane),
methylphosphines (H−CH2PR2), furans,
thiophenes and
ferrocene (Fe(H−C5H4)(C5H5))...
- chemically. Therefore, a prodrug,
sulfanegen sodium (2,5-dihydroxy-1,4-
dithiane-2,5-dicarboxylic acid
disodium salt),
which hydrolyzes into 2 molecules...
-
Cyclobutanone can also be
prepared in a two step
procedure by
dialkylation of 1,3-
dithiane with 1-bromo-3-chloropropane
followed by
deprotection to the
ketone with...
- five-membered
rings with the
formula (CH2)3O2. 1,2-Dioxane 1,4-Dioxane
Dithiane Surprenant,
Kenneth S. (2000). "Dioxane". Ullmann's
Encyclopedia of Industrial...
