2652-77-9Relevant articles and documents
Exocyclic delocalization at the expense of aromaticity in 3,5-bis(π-donor) substituted pyrazolium ions and corresponding cyclic bent allenes
Fernandez, Israel,Dyker, C. Adam,DeHope, Alan,Donnadieu, Bruno,Frenking, Gernot,Bertrand, Guy
, p. 11875 - 11881 (2009)
Small ring allenes are usually highly strained and highly reactive species, and for a long time considered only as transient intermediates. The recent isolation of a five membered heterocyclic allene 1f has raised questions and debate regarding the factor
Chiral Pincer Carbodicarbene Ligands for Enantioselective Rhodium-Catalyzed Hydroarylation of Terminal and Internal 1,3-Dienes with Indoles
Marcum, Justin S.,Roberts, Courtney C.,Manan, Rajith S.,Cervarich, Tia N.,Meek, Simon J.
supporting information, p. 15580 - 15583 (2017/11/14)
Catalytic enantioselective addition of N-heteroarenes to terminal and internal 1,3-dienes is reported. Reactions are promoted by 5 mol % of Rh catalyst supported by a new chiral pincer carbodicarbene ligand that delivers allylic substituted arenes in up to 95% yield and up to 98:2 er. Mechanistic and X-ray evidence is presented that supports that the reaction proceeds via a Rh(III)-η3-allyl.
Methine compound, material for organic luminescence element, organic luminescence element using the same
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, (2008/06/13)
Disclosed is a novel methine compound, for example, which is represented by the following formula (I): wherein R1, R2, R3, R4and R5each represents a hydrogen atom or a substituent; X represents an oxygen atom, a sulfur atom, or N—R6; Z represents —NR7R8, or —OG; R6, R7and R8each represents a hydrogen atom or a substituent; G represents a hydrogen atom, a cation or a substituent; L1, L2and L3each represents a substituted or unsubstituted methine group; n represents 1 or 2; and W represents an electron attractive group. Also, a material for organic luminescence element is disclosed which is a compound represented by the following formula (II): wherein R1, R2, R3, R4, R5, R6, R7and R8each represents a hydrogen atom or a substituent; R9represents a hydrogen atom or a substituent other than a methyl group; X represents an oxygen atom, a sulfur atom, or N—R10, wherein R10represents a hydrogen atom or a substituent; Z1represents an atomic group necessary for forming a5- or6-membered ring; L1and L2each represents a substituted or unsubstituted methine group; and n represents 1 or 2.