67217-00-9

Upstream product

• 2855-19-8 Decyl-oxiran 
• 67-56-1 methanol 
• 55525-63-8 N-methyl-β-alanine sodium salt 

Relevant academic research and scientific papers

Cellulose sulfate: An efficient heterogeneous catalyst for the ring-opening of epoxides with alcohols and anilines

Cellulose sulfate was synthesized by esterification of α-cellulose with concentrated sulfuric acid at ?10°C in ethanol. Cellulose is mainly sulfated on 3-, 6- and 3, 6-positions of the cellulose. It acts as a heterogeneous catalyst for the ring-opening of epoxides with alcohols or anilines and the Friedel-Crafts reaction between N-benzylindole and crotonaldehyde at room temperature. Methanolysis of cyclic epoxides, styrene oxide, terminal aliphatic epoxides, and glycidyl ethers were carried out using the catalyst (0.4–6.8 mg/mmol of epoxide) and afforded the corresponding products in 53–97% isolated yields after 10 min–24 h. Cellulose sulfate was successfully recycled and reused up to 3 catalytic cycles for the ring-opening of styrene oxide with methanol.

Ring opening of epoxides with alcohols using Fe(Cp)2BF 4 as catalyst

Fe(Cp)2BF4 is an efficient catalyst for the alcoholysis of aromatic, aliphatic, and cyclic epoxides giving excellent yields of the corresponding β-alkoxy alcohols under ambient conditions. The methanolysis of styrene oxide using Fe(Cp)2BF4 as a catalyst (5 mol %) gave excellent yield of 2-methoxy-2-phenylethanol with complete regio-selectivity. The ring opening of cyclic epoxides gave 77-97% yields of trans-β-methoxy alcohols, in 0.5-6 h. The use of 1,2-epoxyhexane and 1,2-epoxydodecane as substrates gave both regioisomers in excellent yields. The first order rate of reaction with respect to catalyst was observed for the kinetics of ring opening of 1,2-epoxyhexane with methanol.

Surfactant composition

The present invention relates to a surfactant composition containing a composition containing a diol derivative (I) and a surfactant: wherein R1 is an alkyl or alkenyl group having 4 to 22 carbons, R2 is an alkyl or alkenyl group having 1 to 18 carbon atoms and one of R3 and R4 is a straight-chain or branched alkyl or alkenyl group having 4 to 22 carbon atoms and derived from R1 and the other is a hydrogen atom.

N-(2-HYDROXYALKYL)-N-ALKYLAMINOCARBOXYLIC ACID COMPOSITION, STIMULUS RELIEVING AGENT FOR SURFACTANT CONTAINING THE SAME AND METHOD FOR PRODUCING THE COMPOSITION

PROBLEM TO BE SOLVED: To provide an N-(2-hydroxyalkyl)-N-alkylaminocarboxylic acid-type surfactant composition having excellent low-temperature stability and exhibiting excellent frothing power in a low-pH region. SOLUTION: The N-(2-hydroxyalkyl)-N-alkylaminocarboxylic acid composition contains an N-(2-hydroxyalkyl)-N-alkylaminocarboxylic acid obtained by the addition reaction of an epoxyalkane to an aminocarboxylic acid and further contains ≤5 wt.% alkyldiol derivative compound expressed by general formula (4) (R1 is a 6-20C alkyl; and X and Y are each independently H or a lower alkyl).

Corrosion inhibition

The present invention provides a composition in contact with a corrodable metal surface, comprising a functional fluid and, as corrosion inhibitor, a compound having the formula I: as well as salts or esters thereof, wherein, R1 is C4-C20 linear or branched alkyl, phenyl or C7-C20 alkylphenyl;, R2 is C1-C12 linear or branched alkyl, phenyl or C7-C20 alkylphenyl, or arylalkyl containing 7-20 carbon atoms;, X is CH2, O or S;, Y is O or S; and, Z is -(CH2)n- in which n is 1, 2, 3, 4 or 5, or Z is -CH2-CH(CH3)-. Some of the compounds of formula I are new.

Organotin Phosphate Condensates as a Catalyst of Selective Ring-Opening of Oxiranes by Alcohols

The highly regioselective alcoholysis of oxiranes is catalyzed by organotin phosphate condensates, providing a variety of β-alkoxy alcohols in good yields.The selectivity of the nucleophilic attack is dependent on the structures of epoxides.The gem-dialkyloxiranes are cleaved on the tertiary carbon, while β,γ-epoxy alcohols and their derivatives gave C-3 attack products.The anti stereoisomers are solely produced in the latter case.Thus the catalysis is both acidic and coordinative.Of practical importance is the recycled use of the catalyst without any appreciable decrease in the activity and the selectivities.