E-LIB Suche - Ergebnisse für: Van Den Helder, R.

1

Dexa Body Composition Assessment in 10-11 Year Healthy Chil..:

Verduin, W. M. ; Van Den Helder, R. ; Doodeman, H. J....
PLOS ONE. 11 (2016) 10 - p. e0165275 , 2016

Link: https://doi.org/10.1371/..

2

Photosynthetic bicarbonate utilization in the aquatic angio..:

Prins, H. B. A. ; Snel, J. F. H. ; Helder, R. J..
Hydrobiological Bulletin. 13 (1979) 2-3 - p. 106-111 , 1979

Link: https://doi.org/10.1007/..

3

Alkaloid catalyzed asymmetric synthesis III the addition of..:

Helder, R. ; Arends, R. ; Bolt, W...
Tetrahedron Letters. 18 (1977) 25 - p. 2181-2182 , 1977

Link: https://doi.org/10.1016/..

4

Catalytic asymmetric induction in oxidation reactions. The ..:

Helder, R. ; Hummelen, J.C. ; Laane, R.W.P.M...
Tetrahedron Letters. 17 (1976) 21 - p. 1831-1834 , 1976

Link: https://doi.org/10.1016/..

5

The t-butylation of |8|(2,5)thiophenophane:

Helder, R. ; Wynberg, H.
Tetrahedron. 31 (1975) 20 - p. 2551-2557 , 1975

Link: https://doi.org/10.1016/..

6

Asymmetric induction in the alkaloid-catalysed Michael reac..:

Wynberg, Hans ; Helder, R.
Tetrahedron Letters. 16 (1975) 46 - p. 4057-4060 , 1975

Link: https://doi.org/10.1016/..

7

The diels-alder addition of dicyanoacetylene to [8] (2,5)fu..:

Helder, R. ; Wynberg, Hans
Tetrahedron Letters. 14 (1973) 44 - p. 4321-4324 , 1973

Link: https://doi.org/10.1016/..

8

Reactions of diazomethane with sulfonyl-activated double bo..:

Helder, R. ; Doornbos, T. ; Strating, J..
Tetrahedron. 29 (1973) 10 - p. 1375-1378 , 1973

Link: https://doi.org/10.1016/..

9

[2+2]cycloaddition of substituted thiophenes to acetylenes:

Reinhoudt, D.N. ; Volger, H.C. ; Kouwenhoven, C.G...
Tetrahedron Letters. 13 (1972) 52 - p. 5269-5272 , 1972

Link: https://doi.org/10.1016/..

10

The diels-alder reaction of thiophene:

Helder, R. ; Wynberg, Hans
Tetrahedron Letters. 13 (1972) 7 - p. 605-608 , 1972

Link: https://doi.org/10.1016/..

11

A one-step ring enlargement of a thiophene to a thiepin:

Wynberg, Hans ; Helder, R.
Tetrahedron Letters. 13 (1972) 35 - p. 3647-3650 , 1972

Link: https://doi.org/10.1016/..

12

The synthesis of [2.2](9,10)anthraceno(2,5)furanophane and ..:

Wynberg, Hans ; Helder, R.
Tetrahedron Letters. 12 (1971) 45 - p. 4317-4320 , 1971

Link: https://doi.org/10.1016/..

13

Exchange and circulation of labelled ions in young imtact p..:

Helder, R.J.
The International Journal of Applied Radiation and Isotopes. 2 (1957) 3-4 - p. 231 , 1957

Link: https://doi.org/10.1016/..

14

Analysis of the Exudation Process in Tomato Plants:

ARISZ, W. H. ; HELDER, R. J. ; VAN NIE, R.
Journal of Experimental Botany. 2 (1951) 6 - p. 257-297 , 1951

Link: https://www.jstor.org/st..

15

Analysis of the Exudation Process in Tomato Plants:

ARISZ, W. H. ; HELDER, R. J. ; VAN NIE, R.
Journal of Experimental Botany. 2 (1951) 3 - p. 257-297 , 1951

Link: https://doi.org/10.1093/..