William H. Watson
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View article: CCDC 159523: Experimental Crystal Structure Determination
CCDC 159523: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Experimental and Computational Studies of the Isomerization Reactions of Bidentate Phosphine Ligands in Triosmium Clusters: Kinetics of the Rearrangements from Bridged to Chelated Isomers and X-ray Structures of the Clusters Os<sub>3</sub>(CO)<sub>10</sub>(dppbz), 1,1-Os<sub>3</sub>(CO)<sub>10</sub>(dppbzF<sub>4</sub>), HOs<sub>3</sub>(CO)<sub>9</sub>[μ-1,2-PhP(C<sub>6</sub>H<sub>4</sub>-η<sup>1</sup>)C<sub>6</sub>H<sub>4</sub>PPh<sub>2</sub>], and HOs<sub>3</sub>(CO)<sub>9</sub>[μ-1,2-PhP(C<sub>6</sub>H<sub>4</sub>-η<sup>1</sup>)C<sub>6</sub>F<sub>4</sub>PPh<sub>2</sub>]
Experimental and Computational Studies of the Isomerization Reactions of Bidentate Phosphine Ligands in Triosmium Clusters: Kinetics of the Rearrangements from Bridged to Chelated Isomers and X-ray Structures of the Clusters Os<sub>3</sub>(CO)<sub>10</sub>(dppbz), 1,1-Os<sub>3</sub>(CO)<sub>10</sub>(dppbzF<sub>4</sub>), HOs<sub>3</sub>(CO)<sub>9</sub>[μ-1,2-PhP(C<sub>6</sub>H<sub>4</sub>-η<sup>1</sup>)C<sub>6</sub>H<sub>4</sub>PPh<sub>2</sub>], and HOs<sub>3</sub>(CO)<sub>9</sub>[μ-1,2-PhP(C<sub>6</sub>H<sub>4</sub>-η<sup>1</sup>)C<sub>6</sub>F<sub>4</sub>PPh<sub>2</sub>] Open
Article on experimental and computational studies of the isomerization reactions of bidentate phosphine ligands in triosmium clusters.
View article: Unusual Manganese(III)-Mediated Oxidative Free Radical Additions of 1,3-Dicarbonyl Compounds to Benzonorbornadiene and 7-Heterobenzonorbornadienes: Mechanistic Studies
Unusual Manganese(III)-Mediated Oxidative Free Radical Additions of 1,3-Dicarbonyl Compounds to Benzonorbornadiene and 7-Heterobenzonorbornadienes: Mechanistic Studies Open
Benzonorbornadiene and heterobenzonorbornadiene were reacted with dimedone/acetylacetone and Mn(OAc)3 in the presence and absence of Cu(OAc)2. The reaction of benzonorbornadiene with dimedone gave mainly the dihydrofuran addition product, …
View article: Synthesis and Structure of Cyclopropano-Annelated Homosesquinorbornene Derivatives Containing Pyramidalized Double Bonds: Evidence for the Sterical Effect of a Cyclopropyl Group on the Degree of CC Double-Bond Pyramidalization
Synthesis and Structure of Cyclopropano-Annelated Homosesquinorbornene Derivatives Containing Pyramidalized Double Bonds: Evidence for the Sterical Effect of a Cyclopropyl Group on the Degree of CC Double-Bond Pyramidalization Open
[reaction: see text] endo- and exo-2,3,4,7-tetrahydro-1H-1,4-methanobenzocycloheptene-7-carboxylic acid ethyl esters have been synthesized, and their Diels-Alder cycloaddition reactions with maleic anhydride, dimethyl acetylenedicarboxylat…
View article: CCDC 158699: Experimental Crystal Structure Determination
CCDC 158699: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Structure of a minor reaction product formed via base promoted hydrolysis of Thiele’s ester
Structure of a minor reaction product formed via base promoted hydrolysis of Thiele’s ester Open
Base promoted hydrolysis of dimethyl 3aα,4α,7α,7aα-tetrahydro-4,7-methano-lH-indene-2,5dicarboxylate (i.e., "Thiele's ester", 2), performed by using KOH-MeOH, afforded after aqueous acidic workup the corresponding diacid (i.e., "Thiele's a…
View article: CCDC 158352: Experimental Crystal Structure Determination
CCDC 158352: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 204423: Experimental Crystal Structure Determination
CCDC 204423: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 204419: Experimental Crystal Structure Determination
CCDC 204419: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 157317: Experimental Crystal Structure Determination
CCDC 157317: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 195514: Experimental Crystal Structure Determination
CCDC 195514: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 204420: Experimental Crystal Structure Determination
CCDC 204420: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Unexpected formation of 9,10-dibenzoylphenanthrene
Unexpected formation of 9,10-dibenzoylphenanthrene Open
When heated in the presence of atmospheric oxygen, either in diffuse room light or in the dark, phencyclone (1) undergoes autoxidation to afford 9,10-dibenzoylphenanthrene (3).The structure of 3 was elucidated via application of single cry…
View article: Synthesis of novel cage-annnulated fluoromacrocycles
Synthesis of novel cage-annnulated fluoromacrocycles Open
Two new cage functionalized, partially fluorinated crown ethers (7 and 9) have been synthesized.The structure of 7 has been established unequivocally via application of X-ray crystallographic methods.
View article: CCDC 159526: Experimental Crystal Structure Determination
CCDC 159526: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 164911: Experimental Crystal Structure Determination
CCDC 164911: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 160546: Experimental Crystal Structure Determination
CCDC 160546: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 143776: Experimental Crystal Structure Determination
CCDC 143776: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 158912: Experimental Crystal Structure Determination
CCDC 158912: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 143778: Experimental Crystal Structure Determination
CCDC 143778: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Synthesis of Novel Heterocyclic Clefts Derived from Tetracyclo[6.3.0.04,11.05,9]undecane-3,6-dione and Tricyclo[6.3.0.02,6]ubdecane-3,11,dione
Synthesis of Novel Heterocyclic Clefts Derived from Tetracyclo[6.3.0.04,11.05,9]undecane-3,6-dione and Tricyclo[6.3.0.02,6]ubdecane-3,11,dione Open
New molecular clefts dipyridazinotricycloundecane derivatives (6a-6c), (9a), and (9b) have been prepared via base promoted reactions of 3,6-di -aryl-1,2,4,5-tetrazines with tetracyclo[6.3.0.0 4,11 .0 5,9 ]unde- cane-3,6-dione (1) and with …
View article: Terpenoids. LI. Structures of antitumor diterpenoids, trichorabdals A-E, isolated from Rabdosia trichocarpa.
Terpenoids. LI. Structures of antitumor diterpenoids, trichorabdals A-E, isolated from Rabdosia trichocarpa. Open
The structures of five B-seco-kaurene type diterpenoids, trichorabdals A-E, isolated from Rabdosia trichocarpa were determined by chemical and physical means.
View article: A 2-D NMR Structure Determination of Guan-Fu Base Z, a New Diterpene Alkaloid from the Chinese Herb Guan-Bai-Fu-Tzu (Aconitum koreanum)
A 2-D NMR Structure Determination of Guan-Fu Base Z, a New Diterpene Alkaloid from the Chinese Herb Guan-Bai-Fu-Tzu (Aconitum koreanum) Open
l k a l o i d , Guan-fu b a s e 2 , f r o m Aconitum
View article: Deformation of π-electron systems
Deformation of π-electron systems Open
The crystal structures of C S H ,2 PtX 2 complexes ( where X = Cl, Br, I and SCN ) have been determined by X-ray diffraction.
View article: Antibiotics from Basidiomycetes. XIII The alliacols A and B from Maramius alliaceus (JACQ ex Fr.) Fr.
Antibiotics from Basidiomycetes. XIII The alliacols A and B from Maramius alliaceus (JACQ ex Fr.) Fr. Open
Two antimicrobial and cytotoxic metabolites were isolated from fermentation broth of Marasmius alliaceus. The structures of the two crystalline antibiotics, alliacols A (6) and B (1) were elucidated by spectroscopic methods and chemical co…
View article: Structure-activity study of S-n-butyl S'-p-tert-butylbenzyl N-3-pyridyldithiocarbonimidates and its derivatives. III. Crystal and liquid structures of S-n-butyl S'-p-tert-butylbenzyl N-3-pyridyldithiocarbonimidate (S-1358, Denmert) and the S-alkyl analogs, potent fungicides.
Structure-activity study of S-n-butyl S'-p-tert-butylbenzyl N-3-pyridyldithiocarbonimidates and its derivatives. III. Crystal and liquid structures of S-n-butyl S'-p-tert-butylbenzyl N-3-pyridyldithiocarbonimidate (S-1358, Denmert) and the S-alkyl analogs, potent fungicides. Open
The structure of S-1358, a potent fungicide toward powdery mildew, has been established by X-ray crystallography as the syn configuration regarding the 3-pyridyl and the S-p-tert-butylbenzyl groups about the N=C bond. On the other hand it …
View article: Polarization of the Absorption and Emission Spectra of 9,10-Anthraquinone and 2-Methyl-9,10-anthraquinone
Polarization of the Absorption and Emission Spectra of 9,10-Anthraquinone and 2-Methyl-9,10-anthraquinone Open
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