91965-39-8

Upstream product

• 76-09-5 2,3-dimethyl-2,3-butane diol 
• 140-88-5 ethyl acrylate 
• 42216-96-6 triethyl orthoacrylate 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 

Downstream Products

• 33499-44-4 ethyl 3,4-dimethylbenzoate 
• 619-04-5 3,4-dimethylbenzoic acid 
• 528-44-9 1,2,4-benzene tricarboxylic acid 
• 39155-41-4 (3,4-dimethylcyclohex-3-en-1-yl)methanol 

Relevant academic research and scientific papers

Rate Enhancement in Dilute Salt Solutions of Aqueous Ethanol: The Diels-Alder Reaction

Enhancement in the rate of Diels-Alder reactions can be achieved in dilute aqueous ethanol solutions of inorganic and organic salts.Both NaH2PO4 and KH2PO4 induce up to a 40percent rate enhancement in a Diels-Alder reaction.Many different salts give modes

Rate Enhancement in Ethanolic Aqueous Buffer. The Diels-Alder Reaction

We have observed a 2.5 - 3-fold increase in the rate of Diels-Alder reactions when done in aqueous ethanol, where the aqueous solution was prepared with a pH 7 buffer.This is a simple, inexpensive and convenient method for modest acceleration of the Diels

Sustainable production of pyromellitic acid with pinacol and diethyl maleate

Herein, we report an unprecedented and sustainable route to synthesize pyromellitic acid (PMA), a monomer of polyimide, with pinacol and diethyl maleate which can be derived from lignocellulose. Analogously, a sustainable route to trimellitic acid (TMA) was also developed using pinacol and acrylate as the feedstocks.

PERFUME SYSTEMS

The present application relates to perfume raw materials, perfume delivery systems and consumer products comprising such perfume raw materials and/or such perfume delivery systems, as well as processes for making and using such perfume raw materials, perfume delivery systems and consumer products. Such perfume raw materials and compositions, including the delivery systems, disclosed herein expand the perfume communities' options as such perfume raw materials can provide variations on character and such compositions can provide desired odor profiles.

Diels-alder reaction in air-and moisture-stable zinc-containing ionic liquids

Diels-Alder reactions in a number of air- and moisture-stable dialkylimidazolium halide-ZnCl2 ionic liquids are reported. High yields and high endo selectivities have been observed. The ionic liquids could then be recyclable without loss of reactivity.

[AlCl3 + 2THF]: A new and efficient catalytic system for Diels-Alder cycloaddition of α,β-unsaturated carbonyl compounds under solvent-free conditions

[AlCl3 + 2THF] is a new catalytic system for the Diels-Alder cycloaddition under SFC and air atmosphere. By using equimolar amounts of reactants, this catalyst prevents the polymerization of the diene and allows the corresponding adducts to be isolated with high regio- and stereocontrol and in excellent yields.

Diels-Alder reaction in air- and moisture-stable zinc-containing ionic liquids

Diels-Alder reactions in a number of air- and moisture-stable dialkylimidazolium halide-ZnCl2 ionic liquids are reported. High yields and high endo selectivities have been observed. The ionic liquids could then be recyclable without loss of reactivity.

4-SUBSTITUTED IMIDAZOLE-2-THIONES AND IMIDAZOL- 2-ONES AS AGONISTS OF THE ALPHA- 2B AND ALPHA-2C ADRENERGIC RECEPTORS

Compounds of Formula (I): where X is S and the variables have the meaning defined in the specification are specific or selective to alpha2B and/or alpha2C adrenergic receptors in preference over alpha2A adrenergic receptors, and as such have no or only minimal cardivascular and/or sedatory activity. These compounds of Formula (I) are useful as medicaments in mammals, including humans, for treatment of diseases and or alleviations of conditions which are responsive to treatment by agonists of alpha2B adrenergic receptors. Compounds of Formula (I) where X is O also have the advantageous property that they have no or only minimal cardivascular and/or sedatory activity and are useful for treating pain and other conditions with no or only minimal cardivascular and/or sedatory activity.

The Low-Temperature, Ionic Diels-Alder Addition of Vinyl Ortho Esters to 1,3-Dienes

3,3,3-Triethoxypropene (triethyl orthoacrylate) was added to a series of 1,3-dienes in the presence of trimethylsilyl triflate at -78 to 0 deg C to produce 53-83percent yields of the adduct of ethyl acrylate and the 1,3-dienes.The products were formed und