- In
organic chemistry, a
hemiacetal or a
hemiketal has the
general formula R1R2C(OH)OR,
where R1, R2 is
hydrogen or an
organic substituent. They generally...
- one monosaccharide, the
reducing sugar of the pair,
still has a free
hemiacetal unit that can
perform as a
reducing aldehyde group; lactose,
maltose and...
- thus achiral. More
formally stated, then, an
anomer is an
epimer at the
hemiacetal/hemiketal
carbon in a
cyclic saccharide.
Anomerization is the process...
-
Nonproprietary Name;
brand name Caprosem), also
known as
testosterone 17β-chloral
hemiacetal O-acetate, is a synthetic,
injected anabolic–androgenic
steroid (AAS)...
- fragments. If one R' is a hydrogen, the
functional group is
instead a
hemiacetal,
while if both are H, the
functional group is a
ketone hydrate or aldehyde...
- form a
hemiacetal.
Under acidic conditions, the
hemiacetal and the
alcohol can
further react to form an
acetal and water.
Simple hemiacetals are usually...
- not be
another carbohydrate. A
glycosidic bond is
formed between the
hemiacetal or
hemiketal group of a
saccharide (or a
molecule derived from a saccharide)...
-
Cellobiose has
eight free
alcohol (OH) groups, one
acetal linkage, and one
hemiacetal linkage,
which give rise to
strong inter- and
intramolecular hydrogen...
-
occurs when
acetaldehyde is
dissolved in methanol,
producing a
hemiacetal. Most
hemiacetals are
unstable with
respect to
their parent aldehydes and alcohols...
- agent, for example, in the Tollens' test or Benedict's test. The
cyclic hemiacetal forms of
aldoses can open to
reveal an aldehyde, and
certain ketoses can...
