Pertti Äyräs: search on Z-Library

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

Don't use scam websites

1

1H NMR spectra and stereochemistry of cis- and trans-5,6-dimethyl-2-oxo-1,4-dioxans

Journal:

Magnetic Resonance in Chemistry

Year:

1975

Language:

english

File:

PDF, 203 KB

english, 1975

2

Determination of the conformation of 1,4-diheterocyclanes. I—The 1H n.m.r. spectrum and ring conformation of 3-methyl-2-oxo-1,4-dioxepane

Pertti Äyräs, Annikki Partanen

Journal:

Magnetic Resonance in Chemistry

Year:

1977

Language:

english

File:

PDF, 245 KB

english, 1977

3

The 13C,H coupling constants in structural and conformational analysis: II The correlation of 3J(HCCH) and 3J(CH3CCH) in ethylenes and their methyl derivatives

Journal:

Magnetic Resonance in Chemistry

Year:

1977

Language:

english

File:

PDF, 182 KB

english, 1977

4

On the stereochemistry of 1,4-diheterocyclanes. IV—carbon-13 NMR spectra and structural properties of 1,4-dioxane-2,3-diols and their methyl-substituted derivatives

Journal:

Magnetic Resonance in Chemistry

Year:

1978

Language:

english

File:

PDF, 463 KB

english, 1978

5

The 13C, H coupling constants in structural and conformational analysis. III.. Long-range carbon–hydroxyl proton couplings as evidence of hydrogen bonding in some acylphloroglucinols

Pertti Äyräs, Carl-Johan Widén

Journal:

Magnetic Resonance in Chemistry

Year:

1978

Language:

english

File:

PDF, 367 KB

english, 1978

6

The 13C,H coupling constants in structural and conformational analysis. IV–The rotational dependence of the long-range CH couplings of the aldehyde and hydroxyl protons in salicylaldehyde

Pertti Äyräs, Reino Laatikainen, Simo Lötjönen

Journal:

Magnetic Resonance in Chemistry

Year:

1980

Language:

english

File:

PDF, 360 KB

english, 1980

7

Carbon-13 spectral analysis, tautomeric structures and conformations of four two-ring methylene-bridged phloroglucinol derivatives

Pertti Äyräs, Simo Lötjönen, Carl-Johan Widén

Journal:

Magnetic Resonance in Chemistry

Year:

1981

Language:

english

File:

PDF, 432 KB

english, 1981

8

A proof for negative vicinal proton-proton and proton-carbon spin-spin couplings in aliphatic aldehydes by using temperature and solvent dependence. Conformational studies on glycolaldehyde and di-tert-butyl ethanal

Reino Laatikainen, Vladimir Král, Pertti Äyräs

Journal:

Journal of Magnetic Resonance (1969)

Year:

1969

Language:

english

File:

PDF, 459 KB

english, 1969

9

4-Oxo-1,3-dioxan and its methyl derivatives

Pertti Äyräs, Kalevi Pihlaja

Journal:

Tetrahedron Letters

Year:

1970

Language:

english

File:

PDF, 138 KB

english, 1970

10

Quantum-chemical gas-phase calculations on the protonation forms oftrans- andcis-urocanic acid

Ari Lahti, Matti Hotokka, Kari Neuvonen, Pertti Äyräs

Journal:

Structural Chemistry

Year:

1997

Language:

english

File:

PDF, 762 KB

english, 1997

11

The use of 1H NMR spectra in the conformational assignment of alkyl-substituted 4-oxo-1,3-dioxans

Journal:

Advances in Molecular Relaxation Processes

Year:

1973

Language:

english

File:

PDF, 294 KB

english, 1973

12

A theoretical study of the conformers of trans- and cis-urocanic acid

Ari Lahti, Matti Hotokka, Kari Neuvonen, Pertti Äyräs

Journal:

Journal of Molecular Structure: THEOCHEM

Year:

1995

Language:

english

File:

PDF, 872 KB

english, 1995