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Purity:99%
In various embodiments methods of prepar...
A process for synthesizing (R)-3 -hy dro...
The invention discloses a preparation me...
Multibiotic agents are disclosed. The mu...
(R)-3-hydroxy-1-(p-toluenesulfonyloxy)butane
sodium (R)-3-hydroxybutyrate
(R)-3-hydroxybutyrate (R)-1,3-butanediol monoester
| Conditions | Yield |
|---|---|
|
With
tetra-(n-butyl)ammonium iodide; sodium hydroxide;
In
acetonitrile;
at 75 - 80 ℃;
Reagent/catalyst;
Temperature;
Solvent;
|
92% |
(R)-butane-1,3-diol
Ethyl (R)-3-hydroxybutanoate
(R)-3-hydroxybutyrate (R)-1,3-butanediol monoester
| Conditions | Yield |
|---|---|
|
With
Candida antarctica Lipase B;
Enzymatic reaction;
|
62% |
|
Candida antarctica lipase B;
at 40 - 45 ℃;
for 72h;
under 8 - 10 Torr;
Microbiological reaction;
|
|
|
With
solid-supported Candida antarctica lipase B;
at 40 - 45 ℃;
for 72h;
under 8 - 10 Torr;
|
|
|
With
lipase;
at 40 ℃;
for 6h;
Inert atmosphere;
Enzymatic reaction;
|
|
|
Flow reactor;
Enzymatic reaction;
|
(R)-butane-1,3-diol
Ethyl (R)-3-hydroxybutanoate
(R)-3-hydroxy-1-(p-toluenesulfonyloxy)butane
sodium (R)-3-hydroxybutyrate
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