• FeAlP with 0.025 mol iron loading prepared by drop wise addition of ammonia, resulted a mesoporous material with uniform pore diameter (5-18 nm), higher surface area and higher surface acidity and hence catalytic activity towards the formation of Dibenzyl malonate. (springer.com)
  • Dibenzyl malonate is used in the preparation of tetraethyl 3,3-bis(benzyloxycarbonyl)propylene bisphosphonate. (alfa.com)
  • Takemoto, Y., Catalytic Enantioselective Petasis-type Reaction of Quinolines Catalyzed by a Newly Designed Thiourea Catalyst. (sjtu.edu.cn)
  • The Michael adduct 5 would then be poised to participate directly in the second catalytic cycle by serving as the donor in a regioselective nitro-Michael reaction to a,b-unsaturated aldehydes under iminium ion activation with a cyclic secondary amine catalyst of type 8. (docme.ru)
  • A practical and highly enantioselective Michael addition of malonates to enones to yield 1,5-ketoesters with good yields and excellent enantioselectivities is catalyzed by a simple and readily available bifunctional primary amine-thiourea derived from 1,2-diaminocyclohexane. (organic-chemistry.org)
  • A highly enantioselective Michael addition of malonates to enones is catalyzed by dipeptide-derived multifunctional phosphonium salts. (organic-chemistry.org)
  • Petrova M. Etoksimetilēnmalonskābes esteru reakcijas ar arilhidrazīniem = Reactions of Etoxymetilene Malonic Acid Esters with Arylhydrazines. (osi.lv)
  • The ionic liquid [bmIm]OH is a catalyst and a reaction medium for Michael additions. (organic-chemistry.org)
  • A highly enantioselective Michael addition of malonates to α,β-unsaturated ketones in water is catalyzed by a primary-secondary diamine catalyst containing a long alkyl chain. (organic-chemistry.org)
  • Initially, a bifunctional base/Brønsted acid catalyst of type 7 would preferentially activate the malonate ester 1 and the nitroalkene 2, thus promoting a chemoselective and stereoselective Michael addition. (docme.ru)
  • The waste-free reaction does not require any additional reagents or activators, and amides 3 are produced in a straightforward way under neutral conditions, using THF as a solvent at room temperature ( Scheme 1A ). (rsc.org)
  • Takemoto, Y., A Highly Powerful Hydrogen-bond-donor Organocatalyst for the Enantioselective Oxa-Michael Reaction of Unactivated α,β-Unsaturated Amides and Esters. (sjtu.edu.cn)
  • For the preparation of functionalized polyamides, a range of powerful strategies involving somewhat tedious protection-deprotection procedures the polycondensation of cyclic bis(anhydrides) or bis(thiolactones)with diamines, multicomponent reactions like the Passerini, or the Ritter reaction were developed. (rsc.org)
  • Conventional polycondensation methods provide mostly linear and barely functionalized polyamides, since the reactions do not allow the distinction between reactive groups within a monomer unit, and the formation of cross-linked polyamides is problematic. (rsc.org)
  • 1 mixture of diazide 1 and the analogous dimethyl malonate ( 6 ) having no diazido functionality, we observed an outstanding selectivity for the formation of the diazidated amide 3a under our amidation conditions ( Scheme 2 ). (rsc.org)
  • Since malonate 1 already possessed the two azide groups within its core, it appeared to be the ideal precursor molecule. (rsc.org)
  • It seems highly likely that mixtures of isomers with secondary functions on adjacent carbons arise from oxidation catalyzed by P450 enzymes, while mixtures of isomers with alternating group positions are formed by malonate condensation reactions mediated by polyketide synthase or ketoacyl-CoA synthase enzymes, or else by the head-to-head condensation of long-chain acyls. (springer.com)