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D-Galactal

  • CAS No.: 21193-75-9
  • Purity: 99%
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D-Galactal 21193-75-9 with purity >99% Low price in stock

  • Molecular Formula: C6H10O4
  • Molecular Weight: 146.143
  • Appearance/Colour: White powder 
  • Vapor Pressure: 1.77E-05mmHg at 25°C 
  • Melting Point: 99-102 °C 
  • Refractive Index: -22 ° (C=1.2, MeOH) 
  • Boiling Point: 325.5 °C at 760 mmHg 
  • PKA: 12.79±0.60(Predicted) 
  • Flash Point: 150.7 °C 
  • PSA: 69.92000 
  • Density: 1.414 g/cm3 
  • LogP: -1.38700 

D-Galactal(Cas 21193-75-9) Usage

Purification Methods

Recrystallise D-galactal from EtOAc, EtOH or EtOAc/MeOH. [Overend et al. J Chem Soc 675 1950, Wood & Fletcher J Am Chem Soc 79 3234 1957, Distler & Jourdian J Biol Chem 248 6772 1973, Beilstein 17 III/IV 2332.]

InChI:InChI=1/C6H10O4/c7-3-5-6(9)4(8)1-2-10-5/h1-2,4-9H,3H2/t4-,5-,6-/m1/s1

21193-75-9 Relevant articles

DIASTEREOSELECTIVE SYNTHESIS OF BRANCHED 2-DEOXY SUGARS VIA RADICAL C-C BOND FORMATION REACTIONS

Giese, Bernd,Groeninger, Kay

, p. 2743 - 2746 (1984)

From glycals 1 and 6, 2-deoxy sugars can...

2-nitroglycal and efficient synthesis method thereof

-

Paragraph 0056-0058, (2021/08/06)

The invention discloses an efficient syn...

Me3SI-promoted chemoselective deacetylation: a general and mild protocol

Gurawa, Aakanksha,Kashyap, Sudhir,Kumar, Manoj

, p. 19310 - 19315 (2021/06/03)

A Me3SI-mediated simple and efficient pr...

Ir(I)-Catalyzed C?H Glycosylation for Synthesis of 2-Indolyl-C-Deoxyglycosides

Yu, Changyue,Liu, Yichu,Xie, Xiong,Hu, Shulei,Zhang, Shurui,Zeng, Mingjie,Zhang, Dan,Wang, Jiang,Liu, Hong

supporting information, p. 4926 - 4931 (2021/09/09)

The construction of 2-deoxy-C-glycosides...

Total Synthesis of Tri-, Hexa- and Heptasaccharidic Substructures of the O-Polysaccharide of Providencia rustigianii O34

Ahadi, Somayeh,Awan, Shahid I.,Werz, Daniel B.

supporting information, (2020/05/04)

A general and efficient strategy for syn...

21193-75-9 Process route

(2R,3R)-3-hydroxy-2-(hydroxymethyl)-2H-pyran-4(3H)-one
14125-64-5

(2R,3R)-3-hydroxy-2-(hydroxymethyl)-2H-pyran-4(3H)-one

1,2-didehydrodideoxyallose
13265-84-4,21193-75-9,25312-13-4,26566-29-0,29485-85-6,63949-52-0,81275-42-5,130931-62-3,145375-16-2

1,2-didehydrodideoxyallose

D-glucal
13265-84-4

D-glucal

Conditions
Conditions Yield
With sodium tetrahydroborate; cerium(III) chloride heptahydrate; In methanol; at 0 ℃; for 1h; optical yield given as %de; diastereoselective reaction; Inert atmosphere;
triacetyl-D-galactal
4098-06-0

triacetyl-D-galactal

D-galactal
21193-75-9

D-galactal

Conditions
Conditions Yield
With sodium methylate; In methanol;
100%
With lipase A from Aspergillus niger; In aq. phosphate buffer; acetonitrile; at 25 ℃; for 1h; pH=7; Enzymatic reaction;
99%
With ammonia; In methanol; at 20 ℃; for 5h;
97%
With methanol; potassium carbonate;
97.6%
With methanol; potassium permanganate; trimethylsulphonium iodide; at 25 ℃; under 760.051 Torr; chemoselective reaction;
96%
With methanol; sodium methylate; at 20 ℃; Inert atmosphere;
95%
triacetyl-D-galactal; With sodium methylate; In methanol; at 25 ℃; for 2h; pH=> 11; Inert atmosphere;
95%
With triethylamine; In methanol; water; at 20 ℃; for 24h;
92%
With water; triethylamine; In methanol; at 20 ℃;
92%
With methanol; sodium;
89%
With sodium methylate; In methanol; for 72h;
87%
With ammonia; In methanol; for 15h; Yield given; Ambient temperature;
With sodium methylate; In methanol;
With sodium; In methanol; for 12h;
With anion-exchange resin (Amberlite IRN-78, OH- form); In methanol; for 15h; Ambient temperature;
With ammonia; In methanol;
With sodium methylate; In methanol; at 20 ℃; for 24h;
0.73 g
With sodium methylate; In methanol;
With methanol; sodium methylate; at 20 ℃; for 3h;
With sodium methylate; In methanol; at 20 ℃;
With sodium methylate; In methanol; at 20 ℃; for 1.5h;
With sodium methylate; In methanol;
With methanol; sodium methylate; at 20 ℃; for 2h;
With sodium methylate; In methanol; at 20 ℃;
With sodium methylate; In methanol; at 20 ℃; for 24h; Inert atmosphere;
With methanol; sodium methylate; at 0 - 20 ℃; for 1h; Inert atmosphere;
With methanol; sodium; at 20 ℃; for 0.166667h; Inert atmosphere;
With potassium carbonate; In methanol; at 20 ℃; for 3h;
With sodium methylate; In methanol; at 0 ℃; for 3h;
With methanol; sodium methylate; at 20 ℃; for 3h; Inert atmosphere;
With methanol; sodium methylate; at 20 ℃;
2.7 g
With sodium methylate; In methanol; Inert atmosphere;
With methanol; sodium methylate; at 20 ℃; for 1.5h; Inert atmosphere;
With sodium methylate; In methanol; at 0 ℃; for 3h;

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    Acetic acid (2S,3R,4S,5R)-5-acetoxy-4-((2S,4R,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-2-phenylsulfanyl-tetrahydro-pyran-3-yl ester

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