Results 231 to 240 of about 11,791 (282)

Spiro Compounds for Organic Optoelectronics

Chemical Reviews, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Thomas Fuhrmann-Lieker
exaly   +3 more sources

A spiro Meisenheimer compound

Recueil des Travaux Chimiques des Pays-Bas, 1965
AbstractA Meisenheimer compound has been prepared by the action of a base on 1‐(2′‐hydroxyethoxy)‐2,4,6‐trinitrobenzene. The structure contains a 1,3‐dioxolane ring linked to the six membered ring containing the pentadienate system by a common carbon atom.
R. Foster, C. A. Fyfe, J. W. Morris
openaire   +1 more source

A synthon approach to spiro compounds

Tetrahedron, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rosy Pradhan   +4 more
openaire   +1 more source

ChemInform Abstract: HETEROCYCLIC SPIRO COMPOUNDS. SPIRO‐SUBSTITUTED BENZOTHIAZOLINES

Chemischer Informationsdienst, 1981
AbstractDurch Kondensation des Mercaptoanilins (I) mit den entsprechenden cyclischen Ketonen werden die Spiroverbindungen (II)‐(VI) dargestellt.
F. SAUTER, P. STANETTY, A. BLASCHKE
openaire   +1 more source

Synthesis of certain spiro compounds.

Die Pharmazie, 1977
The synthesis of certain N-substituted azaspirodiones and azaspiranes is described. Fusing equimolecular amounts of 2-oxaspiro [4.4]nonane-1.3-dione with a number of amino compounds afforded the corresponding N-substituted azaspirodiones. However, with certain o-substituted anilines, no condensation took place.
F A, el-Telbany   +2 more
openaire   +2 more sources

ChemInform Abstract: SPIRO HETEROCYCLIC COMPOUNDS. III. SYNTHESIS OF SPIRO(OXINDOLE‐3,4′‐(4′H‐PYRAN)) COMPOUNDS

Chemischer Informationsdienst, 1980
AbstractDie Michaeladdition von CH‐aciden Verbindungen (II) bzw. (IV) an die Oxindole (I) führt in einer mehrstufigen Reaktion zu den Spiroverbindungen (III) bzw. (V).
K. HIGASHIYAMA, H. OTOMASU
openaire   +1 more source

Cannabis XXII. Synthesis of spiro-compounds

Tetrahedron Letters, 1981
Abstract O-methyl-cannabispirenone has been synthesized by two new methods applying spiroannelation on 5,7-dimethoxyindan-1-aldehyde. An alternative high yield synthesis of the latter has been elaborated.
J. Novák, C.A. Salemink
openaire   +1 more source

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