Zobrazeno 1 - 10 of 90 pro vyhledávání: '"R. J. J. Ch. Lousberg"'
1
Synthesis of 2,1-benzisoxazoles (analogues of psilocine and muscimol)
Autor: C. A. Salemink, R. J. J. Ch. Lousberg, H. du Crocq
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 93:139-142
The synthesis of several 2,1-benzisoxazoles with substituents at different positions of the six-membered ring and with a variable aliphatic side-chain at C-3 is reported. Anomalous reactions and complications, encountered in this synthesis, are dealt
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f0eb8f0e8ed529012267374ba2de2c11
https://doi.org/10.1002/recl.19740930507
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2
An additivity relation for carbon-13 chemical shifts in substituted allenes
Autor: R. J. J. Ch. Lousberg, M. J. A. de Bie, Richard H.A.M. Janssen
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 100:85-94
An empirical method for the calculation of the carbon chemical shifts of allene carbons is developed. The method is successful in predicting the chemical shifts in a wide variety of substituted allenes. The effect of the electronegativity of substitu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7cf7e026f96660f9e360076a384d50c5
https://doi.org/10.1002/recl.19811000303
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3
Cannabispirone and cannabispirenone, two naturally occurring spiro-compounds
Autor: C.A.L. Bercht, J.P.C.M. van Dongen, W. Heerma, F.J.E.M. Küppers, R. J. J. Ch. Lousberg
Publikováno v: Tetrahedron. 32:2939-2943
Structure elucidation of two naturally occurring acidic compounds from Cannabis gave two spiro-compounds. The spectroscopic properties ( 1 H-NMR, 13 C-NMR, MS, IR and UV) and interpretation of these spectra are given.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d2c5486e03af57c187974bd15d4402e
https://doi.org/10.1016/0040-4020(76)80149-4
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4
Cannabis—VIII
Autor: Cornelis A. Salemink, C.A.L. Bercht, A. Laven, R. J. J. Ch. Lousberg, W. Heerma, F.J.E.M. Küppers, Johan K. Terlouw
Publikováno v: Tetrahedron. 29:2797-2802
GLC analysis of the products obtained by pyrolysis of cannabidiol in air at 700° revealed the formation of several components, which are not only the result of a mere cracking process. A peak with a retention time corresponding to the one of Δ1(2)t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::62d0feeb78ad708ca0878ec507d69458
https://doi.org/10.1016/s0040-4020(01)93404-0
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6
ChemInform Abstract: SYNTHESIS OF 2,1-BENZISOXAZOLES (ANALOGUES OF PSILOCINE AND MUSCIMOL)
Autor: H. du Crocq, C. A. Salemink, R. J. J. Ch. Lousberg
Publikováno v: Chemischer Informationsdienst. 5
The synthesis of several 2,1-benzisoxazoles with substituents at different positions of the six-membered ring and with a variable aliphatic side-chain at C-3 is reported. Anomalous reactions and complications, encountered in this synthesis, are dealt
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e201f37eafe18fabc4fb9df57cf7085
https://doi.org/10.1002/chin.197442303
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8
ChemInform Abstract: AN ADDITIVITY RELATION FOR CARBON-13 CHEMICAL SHIFTS IN SUBSTITUTED ALLENES
Autor: Richard H.A.M. Janssen, R. J. J. Ch. Lousberg, M. J. A. de Bie
Publikováno v: Chemischer Informationsdienst. 12
An empirical method for the calculation of the carbon chemical shifts of allene carbons is developed. The method is successful in predicting the chemical shifts in a wide variety of substituted allenes. The effect of the electronegativity of substitu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac0dc1841c339d864677ae32e7e5b372
https://doi.org/10.1002/chin.198124055
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