Kascheres, Albert: search on Z-Library

The world's largest scientific articles store. 70,000,000+ articles for free.

Don't use scam websites

1

Recent development in preparation reactivity and biological activity of enaminoketones and enaminothiones and their utilization to prepare heterocyclic compounds

Giuseppina Negri, Concetta Kascheres, Albert J. Kascheres

Journal:

Journal of Heterocyclic Chemistry

Year:

2004

Language:

english

File:

PDF, 1007 KB

english, 2004

2

ChemInform Abstract: Electronically Mediated Selectivity in Ring Opening of 1-Azirines. The 3-Z Mode: Convenient Route to 2-Aza-1,3-dienes.

Marcia T. Barroso, Albert Kascheres

Journal:

Year:

1999

File:

PDF, 35 KB

1999

3

Recent Development in Preparation Reactivity and Biological Activity of Enaminoketones and Enaminothiones and Their Utilization to Prepare Heterocyclic Compounds

Giuseppina Negri, Concetta Kascheres, Albert J. Kascheres

Journal:

Year:

2004

File:

PDF, 7 KB

2004

4

Site selectivity in the reaction of 2-formyl-2H-azirine-N-arylimines with diphenylketene

José Nunes Júnior, Albert Kascheres

Journal:

Journal of Heterocyclic Chemistry

Year:

1997

File:

PDF, 156 KB

1997

5

A cyclopropenone route to new pyrrolizidine derivatives

Albert Kascheres, Heloisa C. Schumacher, Reinaldo A. F. Rodrigues

Journal:

Journal of Heterocyclic Chemistry

Year:

1997

File:

PDF, 177 KB

1997

6

Mass spectra of 2,2-dihydro-5-imino-1,2-oxaphosphol-3-enes

Concetta Kascheres, Albert Kascheres, Antonio Carlos Joussef

Journal:

Journal of Mass Spectrometry

Year:

1984

Language:

english

File:

PDF, 142 KB

english, 1984

7

Mass spectra of some 4(1H)-pyridazinone derivatives

Concetta Kascheres, Albert Kaschers, Ronaldo Aloise Pilli

Journal:

Journal of Mass Spectrometry

Year:

1985

Language:

english

File:

PDF, 159 KB

english, 1985

8

Intramolecular interception of reactive intermediates in the Raney nickel “generated in situ” reduction of oximes. Synthetic and mechanistic implications

Albert Kascheres, Reinaldo A.F. Rodrigues

Journal:

Year:

1996

Language:

english

File:

PDF, 788 KB

english, 1996

9

A route to 2,2-dihydro-5-imino-1,2-oxaphosphol-3-enes

Albert Kascheres, Antonio Carlos Joussef, Humberto C. Duarte

Journal:

Tetrahedron Letters

Year:

1983

Language:

english

File:

PDF, 146 KB

english, 1983

10

Competitive attack of nucleophiles at ring carbon vs carbonyl. Reactions of aziridinecarbamates

Alfred Hassner, Albert Kascheres

Journal:

Tetrahedron Letters

Year:

1970

Language:

english

File:

PDF, 176 KB

english, 1970

11

Alkyl-C versus phenyl-C reactivity in unsymmetrical cyclopropenones. Reaction of methylphenylcyclopropenone with pyrazoles.

Albert Kascheres, Jair Correa Filho, Sílvio Cunha

Journal:

Year:

1993

Language:

english

File:

PDF, 350 KB

english, 1993

12

Reaction of a 1-azirine-3-methylacrylate and derivatives with diphenylketene. A convenient route to 5-pyrrolin-2-ones

Albert Kascheres, José Nunes Jr., Fernando Brandão

Journal:

Year:

1997

Language:

english

File:

PDF, 380 KB

english, 1997

13

Preferred conformations of some 2-pyridyl substituted thiourea derivatives. A reinvestigation of NMR spectral data

Albert Kascheres, Missao Ueno

Journal:

Journal of Heterocyclic Chemistry

Year:

1991

File:

PDF, 95 KB

1991

14

On the regiochemistry of the methylphenylcyclopropenone dimer. A reinvestigation

Silvio Cunha, Albert Kascheres

Journal:

Journal of Heterocyclic Chemistry

Year:

1993

File:

PDF, 95 KB

1993

15

A semiempirical quantum mechanical approach towards understanding of cyclopropenone reactivity

Silvio Cunha, Albert Kascheres

Journal:

Journal of Molecular Structure: THEOCHEM

Year:

1996

Language:

english

File:

PDF, 315 KB

english, 1996

16

Reaction of N-(p-tolylsulfonyl)diphenylcyclopropenimine with pyridinium and isoquinolinium ylides

Pilli, Ronaldo Aloise, Rodrigues, J. Augusto R., Kascheres, Albert

Journal:

Journal of Organic Chemistry

Year:

1983

Language:

english

File:

PDF, 986 KB

english, 1983

17

Reaction of diphenylcyclopropenone with primary and secondary enaminones. Synthetic and mechanistic implications

Kascheres, Concetta, Kascheres, Albert, Pilli, Paula S. H.

Journal:

Journal of Organic Chemistry

Year:

1980

Language:

english

File:

PDF, 489 KB

english, 1980

18

Reaction of diphenylcyclopropenone with 1-azirines. Synthetic and mechanistic implications

Hassner, Alfred., Kascheres, Albert.

Journal:

Journal of Organic Chemistry

Year:

1972

Language:

english

File:

PDF, 445 KB

english, 1972

19

Cycloaddition reactions of cyclopropenones. 4. Reaction of some 2-aminopyridines with methylphenylcyclopropenone

Kascheres, Albert., Kascheres, Concetta., Rodrigues, J. Augusto R., Santana, Ana Rita A.

Journal:

Journal of Organic Chemistry

Year:

1976

Language:

english

File:

PDF, 489 KB

english, 1976

20

Reaction of methyl (E)-2-phenyl-1-azirine-3-acrylates with hydrazines and amidines. Synthetic and mechanistic implications

Kascheres, Albert, Oliveira, Cecilia M. A., De Azevedo, Mariangela B. M., Nobre, Cintia M. S.

Journal:

Journal of Organic Chemistry

Year:

1991

Language:

english

File:

PDF, 327 KB

english, 1991

21

Electronically Mediated Selectivity in Ring Opening of 1-Azirines. The 3- Z Mode: Convenient Route to 2-Aza-1,3-dienes

Barroso, Marcia T., Kascheres, Albert

Journal:

Journal of Organic Chemistry

Year:

1999

Language:

english

File:

PDF, 115 KB

english, 1999

22

Reaction of diphenylcyclopropenone with 2-aminopyridines. Synthetic and mechanistic implications

Kascheres, Albert, Rodrigues, J. Augusto R.

Journal:

Journal of Organic Chemistry

Year:

1975

Language:

english

File:

PDF, 515 KB

english, 1975

23

Synthesis of new nitrogen-bridged heterocycles. Reaction of pyridinium N-imines with cyclopropenones

Kascheres, Albert, Marchi, Decio, Rodrigues, J. Augusto R.

Journal:

Journal of Organic Chemistry

Year:

1978

Language:

english

File:

PDF, 566 KB

english, 1978

24

Electronically Mediated Selectivity in Ring Opening of 1-Azirines. The 3-X Mode: Convenient Route to 3-Oxazolines

Sá, Marcus C. M., Kascheres, Albert

Journal:

Journal of Organic Chemistry

Year:

1996

Language:

english

File:

PDF, 106 KB

english, 1996

25

Reaction of diphenylcyclopropenone with pyridinium N-imine in protic media. Quenching of a reactive intermediate

Kascheres, Albert, Marchi, Decio

Journal:

Journal of Organic Chemistry

Year:

1975

Language:

english

File:

PDF, 377 KB

english, 1975

26

Reaction of enaminothiones with diphenylcyclopropenone. Synthesis of 4,5-dimethylenecyclopentenone derivatives

Kascheres, Albert, Kascheres, Concetta, Braga, A. C. Herrera

Journal:

Journal of Organic Chemistry

Year:

1993

Language:

english

File:

PDF, 248 KB

english, 1993

27

Synthesis of a 3H-pyrido[1,2-b]pyridazin-3-one from pyridine N-imide and methylphenylcyclopropenone

Kascheres, Albert, Marchi, D�cio

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1976

Language:

english

File:

PDF, 104 KB

english, 1976

28

A Convenient Route to 5,6-Diphenyl-5,6-dihydro-uracils

Kascheres, Albert, Kascheres, Concetta, Augusto, J., Rodrigues, R.

Journal:

Synthetic Communications

Year:

1984

Language:

english

File:

PDF, 285 KB

english, 1984

29

On the Reactivity of α-(Triphenylphosphoranylidene)-benzylphenylketene with Nitrogen Compounds: Synthetic and Mechanistic Implications

Cunha, Silvio, Kascheres, Albert

Journal:

Journal of the Brazilian Chemical Society

Year:

2002

Language:

english

File:

PDF, 256 KB

english, 2002

30

Reaction of diphenylcyclopropenone with N-acylamidine derivatives. Synthetic and mechanistic implications

Cunha, Silvio, Kascheres, Albert

Journal:

Journal of the Brazilian Chemical Society

Year:

2001

Language:

english

File:

PDF, 36 KB

english, 2001

31

On the reactivity of triphenylphosphoranylidenesuccinic anhydride with nitrogen nucleophiles: a new synthetic route to nitrogen-containing phosphonium salts

Cunha, Silvio, Kascheres, Albert

Journal:

Journal of the Brazilian Chemical Society

Year:

2000

File:

PDF, 71 KB

2000