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- Currently displaying 27441 - 27460 of 29624 publications
REGIOSPECIFIC SYNTHESIS OF (E) UNSATURATED 3,5-DIALKYL-ISOXAZOLES AND DERIVED LEUKOTRIENE ANALOGS USING PHOSPHINE OXIDES
Tetrahedron Letters
(1989)
30
877
Extension of the horner-wittig reaction to the synthesis of -alkenes with chiral substituents: Stereochemical control by acyl transfer
Tetrahedron Letters
(1989)
30
4581
The structure of two new clerodane diterpenoid potent insect antifeedants from Scutellaria woronowii (Juz); jodrellin A & B
Tetrahedron Letters
(1989)
30
4737
[1,4] PHENYLTHIO SHIFTS OF 2,4,4-TRISPHENYLTHIOBUTANOLS
Tetrahedron Letters
(1989)
30
5933
Stereocontrolled amidocyclisations with phenylthio migration
Tetrahedron Letters
(1989)
30
5937
Syntheses relevant to vitamin B12 biosynthesis: The malate route to (-)-ring-B imide and synthesis of the 2,7,20-trimethylisobacteriochlorin
Journal of the Chemical Society Chemical Communications
(1989)
1116
(doi: 10.1039/c39890001116)
Two monomeric, octahedral complexes of alkaline earth metal salts: syntheses, physical characteristics, and crystal structures of Srl2·4HMPA and Sr(NCS)2·4HMPA [HMPA = O : P(NMe2)3]
J. Chem. Soc., Chem. Commun.
(1989)
893
(doi: 10.1039/c39890000893)
An oxygen species for the oxidative coupling of methane at lower temperatures
Chemical Communications
(1989)
473
(doi: 10.1039/c39890000473)
BIOSYNTHESIS OF VITAMIN-B12 - SYNTHESIS OF (+-)-[5-C-13]FAKTOR-1 ESTER - DETERMINATION OF THE OXIDATION-STATE OF PRECORRIN-1
Chemical Communications
(1989)
428
(doi: 10.1039/c39890000428)
A unique lithium halide complex, [(LiBr)2·3HMPA·toluene]: synthesis from reaction of solid NH4Br with BunLi in HMPA (hexamethylphosphoramide)/toluene media, crystal structure showing two Li–Br units linked by three µ2-HMPA ligands, and detection of7Li ⋯31P coupling in solutions of the complex
J. Chem. Soc., Chem. Commun.
(1989)
318
(doi: 10.1039/c39890000318)
Quadrupole nutation n.m.r. reveals the presence of a new aluminium species in hydrothermally treated zeolites
Chemical Communications
(1989)
240
(doi: 10.1039/c39890000240)
Assembly of a photoactive supramolecule using porphyrin co-ordination chemistry
Journal of the Chemical Society, Chemical Communications
(1989)
226
(doi: 10.1039/C39890000226)
Assignment of the 13C N.M.R. spectrum of the Klebsiella K3 serotype polysaccharide by COSY spectroscopy
Chemical Communications
(1989)
167
(doi: 10.1039/c39890000167)
Direct observation of shape selectivity in zeolite ZSM-5 by magic-angle-spinning NMR
Nature
(1989)
339
200
(doi: 10.1038/339200a0)
SPECTRAL INTENSITY AND CHARGE-DISTRIBUTIONS IN THE TETRAHEDRAL CHROMOPHORES, BIS(3-AMINO-2-METHYLPROPANE-2-THIOLATO)-COBALT(II) AND DIACETATOBIS(ETHYLENETHIOUREA)-COBALT(II)
Journal of the Chemical Society Dalton Transactions
(1989)
2109
(doi: 10.1039/DT9890002109)
Infrared laser spectroscopy of the 201 and 2 12 bands of H2O+ (X̃ 2B1)
Journal of Chemical Physics
(1989)
91
3384
(doi: 10.1063/1.456913)
Intramolecular nucleophilic attack by urea nitrogen. Reactivity–selectivity relationships for the general acid–base catalysed cyclisations of ureido acids and esters
Journal of the Chemical Society, Perkin Transactions 2
(1989)
347
(doi: 10.1039/p29890000347)
Diastereofacial selectivity in Diels–Alder reactions of a diene having a stereogenic centre carrying a silyl group adjacent to the diene system
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
(1989)
2023
(doi: 10.1039/p19890002023)
Biosynthesis of porphyrins and related macrocycles. Part 34. Synthesis and properties of S-pyrrolylmethylcysteinyl and ∈-N-pyrrolylmethyllysyl peptides
Journal of the Chemical Society Perkin Transactions 1
(1989)
1943
(doi: 10.1039/p19890001943)
Allosteric ligand binding to cofacial metalloporphyrin dimers: The mechanism of porphyrin disaggregation
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
(1989)
547
(doi: 10.1039/p19890000547)