Results 251 to 260 of about 1,162,420 (313)

cis,cis,cis-Tetramethyl 1,2,4,5-cyclohexanetetracarboxylate

Acta Crystallographica Section C Crystal Structure Communications, 2000
The title compound, C(14)H(20)O(8), was synthesized from the hydrogenation of tetramethyl 1,4-cyclohexadiene-1,2,4, 5-tetracarboxylate with a catalytic amount of palladium/carbon. All four carbonyl moieties of the methyl ester groups are on the same face of the chair-conformed ring.
, Robinson, , Hua, , Fan, , Liu, , McGill, , Arshid, , Meyers   +6 more
openaire   +2 more sources

Efficient Separation of cis- and trans-1,2-Dichloroethene Isomers by Adaptive Biphen[3]arene Crystals.

Angewandte Chemie, 2019
Reported here is the highly efficient separation of industrially important cis- and trans-1,2-dichloroethene (cis-DCE and trans-DCE) isomers by activated crystalline 2,2',4,4'-tetramethoxyl biphen[3]arene (MeBP3) materials, MeBP3α.
Yiliang Wang, Kaidi Xu, Bin Li, Lei Cui, Jian Li, X. Jia, Hongbin Zhao, Jian-Hui Fang, Chunju Li   +8 more
semanticscholar   +1 more source

Mass Spectrometry Used to Discriminate Between Cis‐Syn‐Cis and Cis‐Anti‐Cis Photoadducts

Bulletin des Sociétés Chimiques Belges, 1980
AbstractCis‐syn‐cis and cis‐anti‐cis regioisomers of tricyclo [6.2.0.02, 7] decan‐3‐ones or tricyclo [5.2.0.02, 6nonan‐3‐ones, formed by (π2 +π2) photocycloaddition reactions between 1, 2‐bis (trimethylsiloxy) cyclobutene and 2‐cyclohexenones or 2‐cyclopentenones, respectively, are unequivocally identified by analysis of the isobutane chemical ...
Martine Van Audenhove, Denis De Keukeleire, Maurits Vandewalle   +2 more
openaire   +2 more sources

iCI: Iterative CI toward full CI

Journal of Chemical Theory and Computation, 2016
It is shown both theoretically and numerically that the minimal multireference configuration interaction (CI) approach [Liu, W.; Hoffmann, M. R. Theor. Chem. Acc. 2014, 133, 1481] converges quickly and monotonically from above to full CI by updating the primary, external, and secondary states that describe the respective static, dynamic, and again ...
Wenjian, Liu, Mark R, Hoffmann
openaire   +2 more sources

Stereochemistry of the enzymic lactonisation of cis,cis-muconic and 3-methyl-cis,cis-muconic acid

Journal of the Chemical Society, Perkin Transactions 1, 1996
Experiments with 4-methyl[3,5,6-2H3]pyrocatechol 7 have shown that the product of its enzymic oxygenation, 3-methyl-cis,cis-muconic acid 8, undergoes enzymic cyclisation by syn addition of carboxy groups to distal double bonds to form the (S)-4-methylmuconolactone 9 in the bacterium Pseudomonas putida and the (S)-3-methylmuconolactone 11 in the fungus ...
Beining Chen, Gordon W. Kirby, Ghanakota V. Rao, Ronald B. Cain   +3 more
openaire   +1 more source

ChemInform Abstract: DARST. UND ISOLIERUNG DES CIS,CIS,CIS,CIS‐CYCLONONATETRAENS‐(1,3,5,7)

Chemischer Informationsdienst. Organische Chemie, 1970
AbstractDie Darstellung der Titelverbindung (II) erfolgt aus dem Ion (I) mit Eiswasser bei 0°C. Mit Methyljodid entsteht aus (I) das Methylderivat (III).
PHILLIP RADLICK, GARY ALFORD
openaire   +1 more source

cis,cis,cis-1,5,9-Cyclododecatriene−Metal Complexes

Organometallics, 2007
The ligand properties of cis,cis,cis-1,5,9-cyclododecatriene (c,c,c-cdt) have been explored. For the known (c,c,c-cdt)Ni (1b) and (c,c,c-cdt)(AgNO3)3 (5) complexes and the new [(c,c,c-cdt)Cu(MeOH)]BF4 (6b), [(c,c,c-cdt)Cu][Al{OC(CF3)3}4] (6d), and (tBu2PC2H4PtBu2)Ni(η2-c,c,c-cdt) (7b) complexes, the molecular structures have been determined.
Chernyshova, E., Goddard, R., Pörschke, K.   +2 more
openaire   +2 more sources

CI Implementation: An Empirical Test of the CI Maturity Model

Creativity and Innovation Management, 2006
There are a number of tools available for organizations wishing to measure and subsequently develop Continuous Improvement (CI). In this article, we review and evaluate a well‐accepted CI development model, namely the CI Maturity Model (Bessant and Caffyn, 1997), against data collected from the 2nd Continuous Improvement Network Survey and a number of ...
Jørgensen, Frances, Boer, Harry, Laugen, Bjørge   +2 more
openaire   +3 more sources

9-(7-Cycloheptatrienyl)-cis,cis,cis,cis-cyclonona-1,3,5,7-tetraene;synthesis and bond-relocation

Journal of the Chemical Society, Chemical Communications, 1972
The title substance was synthesized and was found to respond stereospecifically under the influence of heat and light.
A. G. Anastassiou, E. Reichmanis, R. C. Griffith   +2 more
openaire   +1 more source

The stereospecific synthesis of cis-cis-stercobilinogen and cis-cis stercobilin

Tetrahedron Letters, 1967
Z.J. Petryka, C.J. Watson
openaire   +1 more source