849767-99-3

Upstream product

• 185522-43-4 Ir(CO)(CCC₆H₅)(P(C₆H₅)3)2(C₄H₄) 
• 1493-13-6 trifluorormethanesulfonic acid 
• 75-05-8 acetonitrile 
• 478556-98-8 C₄H₄Ir(P(C₆H₅)3)2COCCC₆H₄CH₃ 
• 478556-99-9 C₄H₄Ir(P(C₆H₅)3)2COCCC₆H₉ 

Downstream Products

• 478621-36-2 C₄H₄Ir(P(C₆H₅)3)2COC₄H₆O⁽¹⁺⁾*OSO₂CF₃^(1-)=[C₄H₄Ir(P(C₆H₅)3)2COC₄H₆O]OSO₂CF₃ 
• 849767-83-5 [Ir(CH=CHCH=CH(cyclic))(η2-acetato)(PPh3)2] 

Relevant academic research and scientific papers

Regio- and stereoselective C-C bond formation between alkynes: Synthesis of linear dienynes from alkynes

Reactions of the iridacyclopentadienes [Ir(-CH=CHCH=CH)(NCCH3)(CO)(PPh3)2]+ (2a) and [Ir(-CH=C(CH2)4C=CH)(NCCH3)(CO)(PPh3 )2]+ (2b) with RC≡CH (R = C6H5, p-C6H4CH3) give linear conjugated dienynes (RC≡CCH=CHCH=CH2 (3) and RC≡CCH=C(CH2)4C=CH2 (5)) and benzene derivatives (RC6H5 (4) and RC6H3C6H8 (6, 6-aryl-1,2,3,4-tetrahydronaphthalene)). Linear conjugated dienynes 3 and 5 are exclusively obtained from the reactions of alkynyl iridacyclopentadienes [Ir(-CH=CHCH=CH)(C≡CR)(CO)(PPh3)2] (7) and [Ir(-CH=C(CH2)4C=CH)(C≡CR)(CO)(PPh3) 2] (8) (R = C6H5 (a), p-C6H4CH3 (b), cyclohex-1-enyl (c)) with HOTf, respectively. The di- and trinuclear alkynyl iridacyclopentadienes p-C6H4(C≡CIr-CH=CHCH=CH)L3)2 (9a), p-C6H4(C≡CIrCH=C(CH2)4C=CH)L 3)2 (9b), and m,m-C6H3(C≡CIr(-CH=CHCH=CH)L3)3 (10) (L3 = (CO)(PPh3)2) react with HOTf to produce the extended and conjugated dienynes p-C6H4(C≡CCH=CHCH=CH2)2 (11), p-C6H4(C≡CCH= C(CH2)4C=CH2)2 (12), and m,m-C6H3(C≡CCH=CHCH=CH2)3 (13), respectively, in high yields. Iridacyclohexadienes [Ir(-CH=CHCH=CHC(=CH-p-C6H4R′))(CO)(PPh3) 2]BF4 (17, R′ = H (a), CH3 (b)) are obtained from the reactions of 7 with HBF4 through a C-C bond-forming reaction between the α-carbons of alkynyl and 1,3-butadiene-1,4-diyl ligands. Plausible reaction pathways are suggested for the C-C bond-forming reaction between RC=CH and 1,3-butadiene-1,4-diyl ligands of iridacyclopentadienes to produce linear dienynes.