Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Thomas H. Brehmer"'
Publikováno v:
ARKIVOC, Vol 2001, Iss 2, Pp 82-94 (2001)
Externí odkaz:
https://doaj.org/article/3e4ae8a6fd514edb8ad1f1372b6d72fd
Publikováno v:
Journal of Inclusion Phenomena. 47:113-121
X-ray crystal structures are reported of a free host compound 1, comprising two diphenylmethanol terminal groups attached to a central 9,10-ethynyl substituted anthracene unit, and of three inclusion compounds of a fluoren-9-ol substituted analogous
Publikováno v:
The Journal of Organic Chemistry. 68:7943-7950
Reaction of 1-substituted 4-acyl-5-hydroxy-3-methyl-1H-pyrazoles (2) with hydroxylamine gives the corresponding “oximes” 3, which are mainly present as (Z)-2,4-dihydro-4-[(hydroxyamino)methylene]-3H-pyrazol-3-ones. Treatment of compounds 3 with t
Publikováno v:
European Journal of Organic Chemistry. 2003:1209-1219
1H and 13C NMR spectroscopic investigations of 4-benzoyl-5-methyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one oxime (4) and different methylation products thereof (5−11) indicate that 4 exists predominantly as 4-enaminopyrazolone in [D6]DMSO solution. Si
Publikováno v:
Journal of Physical Organic Chemistry. 15:270-277
Referring to a crucial problem in crystal engineering and co-crystallization of host–guest complexes, whether the non-covalent supramolecular interactions existing in a pre-crystalline solution state may determine the subsequent crystal structure,
Publikováno v:
Crystal Engineering. 4:343-357
The crystal structures of four p-phenyl-substituted cis-9,10-diphenyl-9,10-dihydroanthracene-9,10-diols, carrying chloro- (1), bromo- (2), iodo- (3) and methyl substituents (4), respectively (with 2 being a previously described compound), have been s
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :235-241
A series of new clathrate host molecules 1–3 (a, b) have been synthesized, which contain two bulky alcoholic groups attached via an acetylene connection element to different positions (1,5, 1,8 or 9,10) of a basic anthracene construction unit. Thei
Publikováno v:
Journal of Physical Organic Chemistry. 13:63-74
Publikováno v:
Sensors and Actuators B: Chemical. 44:595-600
Crystalline inclusion hosts, such as the bulky anthracene 1 , having ethynylborneol groups in 9,10-positions enclathrate organic solvent vapours, e.g. ethanol and 2-propanol to form stoichiometric host-guest complexes. The spectroscopic data in solut
Publikováno v:
ChemInform. 35
Reaction of 1-substituted 4-acyl-5-hydroxy-3-methyl-1H-pyrazoles (2) with hydroxylamine gives the corresponding "oximes" 3, which are mainly present as (Z)-2,4-dihydro-4-[(hydroxyamino)methylene]-3H-pyrazol-3-ones. Treatment of compounds 3 with trich