72214-01-8

Usage

Definition

ChEBI: An alkyl sulfate that is the mono(2-ethylhexyl) ester of sulfuric acid.

InChI:InChI=1/C8H18O4S/c1-3-5-6-8(4-2)7-12-13(9,10)11/h8H,3-7H2,1-2H3,(H,9,10,11)

Synthetic route

2-Ethylhexyl alcohol (104-76-7) → 2-ethylhexyl sulfate (72214-01-8)

Conditions	Yield
With pyridine; sulfur trioxide pyridine complex at 20℃; for 24h;	64%
With chlorosulfonic acid
With sulfuric acid at 5 - 20℃;

2-ethylhexyl sulfate (72214-01-8) + C31H39Cl2N2(1+)*I(1-) → C31H39Cl2N2(1+)*C8H17O4S(1-)

Conditions	Yield
Stage #1: 2-ethylhexyl sulfate With sodium hydroxide In water for 0.5h; Stage #2: C31H39Cl2N2(1+)*I(1-) In methanol; water; acetone; butanone at 60℃; for 4h;	9.14 g

Upstream product

• 104-76-7 2-Ethylhexyl alcohol 

Relevant academic research and scientific papers

COLORING COMPOSITION, COLORING COMPOSITION FOR COLOR FILTER, AND COLOR FILTER

PROBLEM TO BE SOLVED: To provide a coloring composition using a salt-forming compound, which is soluble in a solvent and can be used as a bright red dye, a coloring composition for a color filter, which is excellent in brightness, heat resistance, and a contrast ratio when used for a color filter, and a color filter having no generation of foreign substances on a coating film. SOLUTION: The coloring composition comprises a salt-forming compound of a cationic cyanine dye represented by general formula (1-1), and an organic solvent. In the formula, A1 and A2 each independently represent -CR12(R13)- or -S-; R1 to R11 each independently represent H, a substituted or unsubstituted alkyl group or the like; R12 and R13 each independently represent a substituted or unsubstituted alkyl group or the like; and Anion- represents a specific sulfate anion. COPYRIGHT: (C)2015,JPO&INPIT

Process for the manufacture of 2-ethylhexyl acrylate

2-Ethylhexyl acrylate is obtained by esterification of acrylic acid (AA) with 2-ethylhexanol (2-EtHexOH), in the presence of at least one stabilizer for AA, with H2SO4 as catalyst, the crude reaction mixture (B1) obtained comprising the desired acrylate, 2-EtHexOH, AA, 2-ethylhexyl hydrogensulphate (2-EtHexSO4H), traces of H2SO4 and impurities. (B1) is washed with water in an extraction column C2 to remove, at the bottom, the aqueous phase (A1), the top organic phase (O2) being sent to a topping column C3 to obtain, at the top, the AA and the 2-EtHexOH, which are recycled to the esterification, the topped desired acrylate being sent to a distillation column C4, from where it exits, purified from the heavy products; a stage of hydrolysis of the 2-EtHexSO4H present in (A1) being carried out to form, in this phase, 2-EtHexOH and H2SO4, the acidic entities resulting from the hydrolysis being neutralized by introduction of a base into the medium, and the resulting aqueous phase (A3) being sent to the recovery of the 2-EtHexOH in a distillation column C1.