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Sunday, August 2, 2020 | History

4 edition of The addition of heterocyclic amines to cinnamete esters found in the catalog.

The addition of heterocyclic amines to cinnamete esters

by Guy Charles Mattson

  • 82 Want to read
  • 40 Currently reading

Published by University of Florida in Gainesville, Fla .
Written in English

    Subjects:
  • Esters.,
  • Amines.

  • The Physical Object
    Pagination76 leaves
    Number of Pages76
    ID Numbers
    Open LibraryOL24141331M
    OCLC/WorldCa13200823

    • Aromatic heterocyclic amines (in aqueous solution) are much weaker bases than nonaromatic amines. Basicity 14 – Amines versus Amides • Amides are much less basic than amines – The pKa of a protonated amide is typically about zero • One reason for this . The direct synthesis of amides from carboxylic acid esters can be carried out using metal complexes such as Sb(OEt) 3, 2 Zr(Ot-Bu) 4 HOAt, 3 AlMe 3, 4 NaOMe, 5 KOt-Bu, 6 DABAL-Me 3, 7 and MgX 2.

    Heterocyclic amines include compounds with a cyclic carbon ring (carbocyclic) in which at least one of the carbons have been replaced by a different atom (heteroatom), in addition to the presence of an amine group. Nitrogen comprises the most common heteroatom, followed closely by oxygen and sulfur. In addition, α-halo ketones and esters can also be used as aldehyde reaction partners. via amine-mediated Michael addition followed by an N-heterocyclic carbene-promoted intramolecular.

      Copper-(II) Catalyzed N -Formylation and N -Acylation of Aromatic, Aliphatic, and Heterocyclic Amines and a Preventive Study in the C-N Cross Coupling of Amines with Aryl Halides. ChemCatChem , 10 (17), DOI: /cctc Optimization of the kinetic resolution of 2-aminophenyl-butane was achieved at 80 °C using CAL-B-catalyzed aminolysis of carboxylic acids and their ethyl esters. The reactions carried out with long chain esters and the corresponding acids as acyl donors proceeded with remarkably high enantioselectivity. The use of carboxylic acids as acylating agents led to a marked acceleration of the.


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The addition of heterocyclic amines to cinnamete estersAuthor: Guy Charles Mattson. texts All Books All Texts latest This Just In Smithsonian Libraries FEDLINK (US) Genealogy Lincoln Collection. National Emergency Library.

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compounds by the addition of heterocyclic secondary amines to cinnamate esters. O CH=CH-COOR + H-N R N /CH-CH,-COOR OR' The addition of amines to acrylate esters consti-tutes a useful method of synthesizing N-substituted beta-amino propionate esters.

However, there are few literature reports of the reaction of amines with the less reactive. Buy Addition of Heterocyclic Amines to Cinnamate Esters by Mattson, Guy Charles online on at best prices.

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The addition of heterocyclic amines to cinnamete esters By (Dissertant) Guy Charles Mattson, C. (Thesis advisor) Pollard, A. (Reviewer) Gropp, Lauretta E. (Reviewer) Lap, C. (Reviewer) Reid and J. (Reviewer) Hawkins. Buy The addition of heterocyclic amines to cinnamete esters by Guy Charles Mattson (ISBN:) from Amazon's Book Store.

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Everyday low prices and free delivery on eligible : Guy Charles Mattson. Discover our full range of books, gifts, toys, stationery and audiobooks at Buy online with Free UK Delivery on Orders Over £ Addition of Heterocyclic Amines to Cinnamate Esters: : Mattson, Guy Charles: Libros en idiomas extranjerosFormat: Tapa dura.

We report the enantioselective [2+2] cycloaddition of simple cinnamate esters, the products of which are useful synthons for the controlled assembly of cyclobutane natural products. This method utilizes a cocatalytic system in which a chiral Lewis acid accelerates the transfer of triplet energy from an excited-state Ir(III) photocatalyst to the cinnamate ester.

Addition of Heterocyclic Amines to Cinnamate Esters: Guy Charles Mattson: Books - or: Guy Charles Mattson. István Hermecz, in Advances in Heterocyclic Chemistry, Reactivity of substituent present in a side chain. Aromatic ester group present in a side chain attached to position 5 of pyrido[1,2-b]pyridazine skeleton was hydrolyzed under basic conditions to the carboxyl group which was converted to the 5-methyl-1,2,4-oxadiazolyl group by treatment with ClCO 2 Et and NEt 3, followed by.

We then examined the scope of vinyl esters. Both aromatic and aliphatic vinyl esters underwent the amidation reaction smoothly to produce the corresponding amides in good to high yields (Scheme 2, 3s–u).

Vinyl cinnamate proved to be a good acylation reagent for the amidation of aromatic amines to produce amide 3v with 84% yield (Scheme 2, 3v). Addition reattlon Pei eta/, studied the synthesis and biological activity of piperidine constrained phenylethyiam as selective dipeptidyl peptidase IV (DPP4) inhibitors for trealment of type 2 diabetes The Michael addition of nitromethane to cinnamate esters.

Heterocyclic amines include compounds with a cyclic carbon ring (carbocyclic) in which at least one of the carbons have been replaced by a different atom (heteroatom), in addition to the presence of an amine group.

The isothiourea-catalysed enantioselective Michael addition of 3-aryloxindole and 4-substituted-dihydropyrazolone pronucleophiles to α,β-unsaturated p-nitrophenyl esters is process generates products containing two contiguous stereocentres, one quaternary, in good yields and excellent enantioselectivities (>30 examples, up to > 5 dr and 1 er).

Gert Forkmann, Werner Heller, in Comprehensive Natural Products Chemistry, (i) Biochemistry. transCoumarate is the second important intermediate on the way to phenylpropanoid meta- is formed by hydroxylation of trans-cinnamate in the presence of molecular oxygen, and NADPH as a reducing reaction is catalyzed by a membrane-bound cytochrome PExamination of conjugated ethylenic sulfones, sulfoxides, and esters in Michael-type addition reactions reveals, for the first time, that the size of the heteroatom-attached alkyl group affects the rate of conjugate addition.

Molecular modeling strongly suggests that what are generally considered to be “remote” alkyl groups in −CβHCαHS(O)nalkyl systems and −CH2CβHCαHCOOalkyl.Addition of alcohols to nitriles was preferably used for the synthesis of aromatic or heterocyclic carboxylic acid imide esters, e.g.

(; equation ), – as well as for α-arylamino-or α-arylmercaptocarboxylic acid imide esters and for bicyclobutanimidic acid esters. By condensation of dichloroacetonitrile with ketones in.