Abstract: The present invention relates to design and preparation of LDH-diisopropylamide through simple exchange process for the first time and its use in catalytic amounts for preparing aldols/&agr;,&bgr;-unsaturated nitriles/&agr;,&bgr;-unsaturated esters/transesterified products/&bgr;-nitroalkanols/Michael adducts and epoxide, resulting in higher yields.

Abstract: The present invention provides novel &agr;-glucosidase inhibitory compound (−)-mesquitol and its analogs isolated in significant yield from traditional medicinal plant Dichrostachys cinerea and further modification of (−)-mesquitol to enhance the &agr;- glucosidase inhibitory potential; the invention also identifies the usage of (−)-mesquitol and its analogues, based on their &agr;-glucosidase inhibitory activity, as broad based potential therapeutics as antihyperglycernic, antidiabatic, antiobesity, antiviral, anticancer, immunestimulants and the like.

Abstract: The present invention relates to design and preparation of LDH-diisopropylamide through simple exchange process for the first time and its use in catalytic amounts for preparing aldols/&agr;,&bgr;-unsaturated nitriles/&agr;,&bgr;-unsaturated esters/transesterified products/&bgr;-nitroalkanols/Michael adducts and epoxide, resulting in higher yields.

Abstract: The present invention provides a process for the preparation of amine oxide by reacting a tertiary or a secondary amine with hydrogen peroxide as an oxidant in the presence of a recyclable heterogeneous catalyst comprising a layered double hydroxide exchanged with an anion in the presence of an additive selected from the group consisting of benzonitrile, propionitrile, isobutyronitrile, benzamide and isobutyraride.

Abstract: The invention relates to a process for the preparation of diazonaphthoquinonesulfonylchlorides of the formula 1, 2 and 3 using diphosgene or triphosgene.

Abstract: A one-piece knee bolster for a motor vehicle includes a knee bolster cover adapted to mount to vehicle structure in an interior of a motor vehicle and at least one hollow reinforcing channel member extending along the knee bolster cover to reinforce the knee bolster cover.

Abstract: LDH-osmate of the formula [MII(1−x)MIIIx(OH)2][OsO42−]x/2.zH2O wherein MII is a divalent cation selected from the group consisting of Mg2+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+ and Ca2+ and MIII is a trivalent ion selected from the group consisting of Al3+, Cr3+, Mn3+, Fe3+ and Co3+, and x is the mole fraction having integral value ranging from 0.2 to 0.33, and z is the number of water molecules and ranges from 1 to 4, useful as, a catalyst, and a process for the preparation thereof and use thereof to manufacture vicinal diols.

Abstract: A process for the preparation of high quality amine oxides by reacting a tertiary or secondary amine with hydrogen peroxide as an oxidant in the presence of a recyclable heterogeneous layered double hydroxide exchanged with one of the anions of transition metal oxides as a catalyst in an organic solvent at a temperature ranging between 10-25° C. for a period of 1-6 hours under continuous stirring and separating the product by simple filtration and subsequently evaporation of solvents by known methods.

Abstract: A one-piece knee bolster for a motor vehicle includes a knee bolster cover adapted to mount to vehicle structure in an interior of a motor vehicle and at least one hollow reinforcing channel member extending along the knee bolster cover to reinforce the knee bolster cover.

Abstract: The invention relates to a process for the preparation of high quality tetrabromobisphenol-A by reacting bisphenol-A with bromine and hydrogen peroxide as an oxidant in the presence of a heterogeneous catalyst in a biphase system consisting of water and water immiscible organic solvents.

Abstract: Novel N-sulfinyl-2-carboxyaziridine compounds and novel N-hydrogen-2-hydroxymethylaziridine compounds are provided. The asymmetric synthesis of N-sulfinylaziridines is readily accomplished in high diastereomeric purity and good yield by the Darzens-type reaction of the metal enolate of an .alpha.-haloester and an enantiopure sulfinimine. Ring-opening of these aziridines affords .alpha.-amino acids and the otherwise difficult to prepare syn-.beta.-hydroxy-.alpha.-amino acids, both key structural units found in many bioactive materials. The N-sulfinyl radical may be selectively removed from the novel aziridine compounds by treatment with acid or base. Alternatively, the N-sulfinyl radical may be oxidized to provide the corresponding N-sulfonyl-aziridine, or reduced to form the corresponding 1H-2-hydroxymethylaziridine, either of which may subsequently be ring-opened to provide precursors to bioactive compounds.