7382-06-1

Upstream product

• 623-73-4 diazoacetic acid ethyl ester 
• 501-65-5 diphenyl acetylene 

Downstream Products

• 17825-58-0 2,3-diphenylcycloprop-2-enecarboxylic acid 
• 6415-70-9 2,3-Diphenyl-2-cyclopropen-1-carboxamid 
• 24478-63-5 2-Ethoxy-4,5-di-phenyl-furan 
• 150017-29-1 2,3-Dibromo-2,3-diphenyl-cyclopropanecarboxylic acid ethyl ester 
• 95436-04-7 p-Toluolsulfonoxy-(2,3-diphenyl-cyclopropen-⁽²⁾-yl)-methan 
• 104681-50-7 1,3-diphenyl-2-methylene-but-3-en-1-ol 
• 104681-36-9 1,2-diphenyl-3-(phenylthiomethyl)cyclopropene 
• 104681-38-1 1,2-diphenyl-3-(phenylselenomethyl)cyclopropene 
• 104681-37-0 1,2-diphenyl-3-(phenylsulphinylmethyl)cyclopropene 
• 104681-47-2 endo-1,3-diphenyl-2-(phenylselenomethyl)bicyclobutane 
• 660423-56-3 3,5-diphenylpyridazine-4-carboxylic acid ethyl ester 
• 1252686-84-2 3-(2,3-diphenylcycloallyl)-1,5-diphenylpenta-1,4-diyn-3-ol 

Relevant academic research and scientific papers

Selective Alkynylallylation of the C?C σ Bond of Cyclopropenes

A Pd-catalyzed regio- and stereoselective alkynylallylation of a specific C?C σ bond in cyclopropenes, using allyl propiolates as both allylation and alkynylation reagents, has been achieved for the first time. By merging selective C(sp2)-C(sp3) bond scission with conjunctive cross-couplings, this decarboxylative reorganization reaction features fascinating atom and step economy and provides an efficient approach to highly functionalized dienynes from readily available substrates. Without further optimization, gram-scale products can be easily obtained by such a simple, neutral, and low-cost catalytic system with high TONs. DFT calculations afford a rationale toward the formation of the products and indicate that the selective insertion of the double bond of cyclopropenes into the C-Pd bond of ambidentate Pd complex and the subsequent nonclassical β-C elimination promoted by 1,4-palladium migration are critical for the success of the reaction.

Isolable Copper(I) ?2-Cyclopropene Complexes

Treatment of bis(pyrazolyl)borate ligand supported [(CF3)2Bp]Cu(NCMe) with 1,2,3-trisubstituted cyclopropenes produced thermally stable copper(I) ?2-cyclopropene complexes amenable to detailed solution and solid-state analysis. The [(CF3)2Bp]Cu(NCMe) also catalyzed [2 + 1]-cycloaddition chemistry of terminal and internal alkynes with ethyl diazoacetate affording cyclopropenes, including those used as ligands in this work. The tris(pyrazolyl)borate [(CF3)2Tp]Cu(NCMe) is a competent catalyst for this process as well. The treatment of [(CF3)2Tp]Cu with ethyl 2,3-diethylcycloprop-2-enecarboxylate substrate gave an O-bonded rather than a ?2-cyclopropene copper complex.

Cu(I)-Catalyzed Intramolecular Tandem Cyclization of N-Indole-Tethered Cyclopropenes: Synthesis of Functionalized Hydrogenated Diazabenzo[ a]cyclopenta[ cd]azulene Derivatives

A Cu(I)-catalyzed [3 + 2] intramolecular cycloaddition reaction of N-indole-tethered cyclopropenes is presented in this paper. This reaction starts from the formation of ?-allyl cationic intermediate or its resonance-stabilized metal carbenoid intermediate upon activation of cyclopropene with Cu(I) catalyst and a Friedel-Crafts-type cyclization to give functionalized hydrogenated diazabenzo[a]cyclopenta[cd]azulenes in good to excellent yields along with moderate to good dr values. The asymmetric variant of this cycloaddition reaction can be realized, giving the desired products with moderate ee values.

ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

An organic light emitting device (OLED) that includes an anode, a cathode, and an organic layer disposed between the anode and the cathode. The organic layer includes a metal compound that comprises a ligand LA of Formula I, wherein the dashed

RhI-Catalyzed Carbonylative [3+1] Construction of Cyclobutenones via C?C σ-Bond Activation of Cyclopropenes

With a catalytic amount of Rh(cod)2BF4 and dppm, cyclopropenes undergo a direct carbonylative [3+1] cycloaddition reaction under an atmosphere of CO to produce the cyclobutenones in excellent yields, in which the regio- and diastereoselectivities can be controlled in certain cases with the help of chelating groups. Cyclobutenone with a chiral 4-position was prepared by diastereoselective induction. Rhodacyclopentenone has been determined as the key intermediate, as it was synthesized and applied to the reductive elimination step.

Carboxylates as Nucleophiles in the Enantioselective Ring-Opening of Formylcyclopropanes under Iminium Ion Catalysis

In this work, carboxylic acids, which are typically regarded as poor nucleophiles, are demonstrated to be competent reagents to promote the ring-opening of formylcyclopropanes after activation of the latter through iminium ion formation. Under optimized r

Gold(i)-catalysed synthesis of conjugated trienes

Gold(i)-catalysed reaction between cyclopropenes and furans produces functionalised conjugated trienes. The reaction is mild, facile and proceeds with very low catalyst loadings.

Rh(I)-catalyzed carbonylative carbocyclization of tethered ene- and yne-cyclopropenes

Rh(I)-catalyzed carbonylative carbocyclization of ene- and yne-cyclopropene systems provides cyclohexenones and phenols with high efficiency, respectively.

Gold(I)-catalyzed cycloisomerization of enynes containing cyclopropenes

Goldenyne: Gold-catalyzed cycloisomerization reactions of propargyl cyclopropenes afford benzene derivatives in a highly efficient manner. The reaction either proceeds through a mechanism with or without double and triple bond cleavage, depending on the substituents (see scheme). Copyright

1,3,5-Tris(thiocyanatomethyl)mesitylene as a Ligand. Pseudooctahedral molybdenum, manganese, and rhenium carbonyl complexes and copper and silver dimers. Copper-catalyzed carbene- and nitrene-transfer reactions

New molybdenum(0), molybdenum(II), manganese(I), rhenium(I), silver(I), and copper(I) complexes with the 1,3,5-tris(thiocyanatomethyl)mesitylene [Ms(CH2SCN)3] ligand have been synthesized and characterized by IR, NMR, and by X-ray diffraction (except for the rhenium complex). The Ms(CH2SCN)3 ligand coordinated with the molybdenum, manganese, and rhenium carbonyl fragments as a tripodal chelate. With copper and silver, dimeric dicationic species were obtained instead, with the Ms(CH2SCN)3 ligand acting simultaneously as a bidentate chelate and bridge. The [{Cu(Ms(CH2SCN)3)} 2][BAr′4]2 (BAr′4 = tetra(3,5-bis(trifluoromethyl)phenyl)borate) product is an excellent catalyst for cyclopropanation and aziridination of alkenes and cyclopropenation of alkynes by means of carbene- and nitrene-transfer reactions.