35158-25-9Relevant articles and documents
-
Kohn
, p. 189 (1897)
-
-
Borodin
, p. 481 (1872)
-
Organic compound as well as preparation method and application thereof
-
Paragraph 0187; 0189; 0203; 0205; 0224; 0226; 0245; 0248, (2019/10/04)
The invention relates to an organic compound as well as a preparation method and application thereof. The organic compound has a structural formula I shown in the specification, in the formula, R4 is H; R1, R2 and R3 are alkyl or H of which the carbon number is an integer; the total carbon number of R1, R2, R3 and R4 is 0-3; R5 and R6 are of an identical structure and are both saturated alkyl with 1-3 carbon atoms; A is a polyoxy alkenyl ether group, a sulfation polyoxy alkenyl ether group, an aliphatic, alicyclic or aromatic group which forms an ester group with adjacent oxygen atoms, or an aliphatic, alicyclic or aromatic group which comprises other ester groups. Due to a carbon chain structure similar to Guerbet alcohol and an alcoholic hydroxyl derivative structure at a para-site in the organic compound, the organic compound has excellent low-temperature properties and good degradability in a surfactant, ester type lubricating oil or a plasticizer.
A 2-isopropyl-5-methyl-2-hexenal method for the preparation of
-
Paragraph 0035; 0039; 0040; 0041, (2016/10/07)
The invention provides a method for preparing 2-isopropyl-5-methyl-2-hexenal by using 3-methylbutyraldehyde as a raw material and solid alkali of alumina supported alkali metal hydroxide or alkali carbonate as a catalyst. The method provided by the invention has the advantages that an alkaline aqueous solution is avoided, thus treatment and discharge of alkaline wastewater are reduced; the prepared solid alkali catalyst has higher activity, can be used for preparing the 2-isopropyl-5-methyl-2-hexenal with higher yield and makes separation and purification of the product simpler.
P-Toluene sulfonic acid (PTSA)-MCM-41 as a green, efficient and reusable heterogeneous catalyst for the synthesis of jasminaldehyde under solvent-free condition
Ganga, Venkata Subba Rao,Abdi, Sayed H.R.,Kureshy, Rukhsana I.,Khan, Noor-Ul H.,Bajaj, Hari C.
, p. 264 - 271 (2016/05/19)
This paper reports the synthesis of p-Toluene sulfonic acid (PTSA)-MCM-41 by impregnation method and its characterization XRD, FT-IR, TGA, N2 adsorption-desorption isotherms, SEM, and TEM. The impregnated catalysts were used to catalyse cross-aldol condensation of active methylene bearing aliphatic aldehydes with aromatic aldehydes under solvent and metal-free condition particularly in the synthesis perfumery chemical-jasminaldehyde and related compounds. The as synthesized catalyst PTSA-MCM-41 has displayed high efficiency (selectivity up to 91%) in catalyzing cross-aldol condensation reaction and was reusable (5 cycles) with no apparent loss in activity. The catalytic performance of PTSA-MCM-41 was compared with other catalysts viz., ZnO, proline, proline-LDH, PTSA, PTSA-zirconia and PTSA-zeolite where PTSA-MCM-41 showed better performance particularly in synthesis of jasminaldehyde.
