Syntheses and Single-Crystal X-ray Diffraction Studies of Acyclic and Macrocyclic Aza Dithiolate (NS2) Complexes of (Arene)ruthenium(II). Thiolate Alkylation, Base-Promoted Hydroalkylation, and Protonation Reactions
摘要:
The complex [(HMB)Ru{eta(3)-HN(CH2CH2S)(2)}] (2), synthesized from the reaction of [(HMB)RuCl2](2) (HMB = eta(6)-C6Me6) with HN(CH2CH2S-)(2), undergoes S-alkylation reactions with (i) Br(CH2)nBr (n 2-4), giving [(HMB)Ru{eta(3)-S(CH2)(2)NH(CH2)(2)S(CH2)(n)}](PF6)(2) (n = 2 (3), 3 (4), 4 (5)), which contain macrocyclic zNS(2) (z = 9-11) ligands, (ii) CH3I, giving [(HMB)Ru{eta(3)-NH(CH2CH2SMe)(2)}](I.PF6) (6), and (iii) bromoalkenes CH2=CH(CH2)(n)Br (n = 1, 2), yielding the S-alkenyl derivatives [(HMB)Ru{eta(3)-S(CH2)(2)NH(CH2)(2)SCH2CH=CH2}]PF6 (7), [(HMB)Ru{eta(3)-NH((CH2)(2)SCH2CH=CH2)(2)}](Br-PF6) (8), and [(HMB)Ru{eta(3)-S(CH2)(2)NH(CH2)(2)S(CH2)(2)CH=CH2}]PF6 (9). Deprotonation of 3 and 7 results in the formation of arene-tethered complexes, viz. [Ru{eta(6):eta(3)-C6Me5(CH2)(3)S(CH2)(2)NH(CH2)(2)S}]PF6 (11), from 3 via [(HMB)Ru{eta(3)-S(CH2)(2)NH(CH2)(2)SCH=CH2}]PF6 (10), which can be reverted to 3 with acid treatment, and [Ru{eta(6):eta(3)-C6Me5CH2CH(Me)CH2S(CH2)(2)NH(CH2)(2)S}]PF6 (12) from 7. The X-ray crystal structures of 2, 3, and 5-12 are reported.
Syntheses and Single-Crystal X-ray Diffraction Studies of Acyclic and Macrocyclic Aza Dithiolate (NS2) Complexes of (Arene)ruthenium(II). Thiolate Alkylation, Base-Promoted Hydroalkylation, and Protonation Reactions
摘要:
The complex [(HMB)Ru{eta(3)-HN(CH2CH2S)(2)}] (2), synthesized from the reaction of [(HMB)RuCl2](2) (HMB = eta(6)-C6Me6) with HN(CH2CH2S-)(2), undergoes S-alkylation reactions with (i) Br(CH2)nBr (n 2-4), giving [(HMB)Ru{eta(3)-S(CH2)(2)NH(CH2)(2)S(CH2)(n)}](PF6)(2) (n = 2 (3), 3 (4), 4 (5)), which contain macrocyclic zNS(2) (z = 9-11) ligands, (ii) CH3I, giving [(HMB)Ru{eta(3)-NH(CH2CH2SMe)(2)}](I.PF6) (6), and (iii) bromoalkenes CH2=CH(CH2)(n)Br (n = 1, 2), yielding the S-alkenyl derivatives [(HMB)Ru{eta(3)-S(CH2)(2)NH(CH2)(2)SCH2CH=CH2}]PF6 (7), [(HMB)Ru{eta(3)-NH((CH2)(2)SCH2CH=CH2)(2)}](Br-PF6) (8), and [(HMB)Ru{eta(3)-S(CH2)(2)NH(CH2)(2)S(CH2)(2)CH=CH2}]PF6 (9). Deprotonation of 3 and 7 results in the formation of arene-tethered complexes, viz. [Ru{eta(6):eta(3)-C6Me5(CH2)(3)S(CH2)(2)NH(CH2)(2)S}]PF6 (11), from 3 via [(HMB)Ru{eta(3)-S(CH2)(2)NH(CH2)(2)SCH=CH2}]PF6 (10), which can be reverted to 3 with acid treatment, and [Ru{eta(6):eta(3)-C6Me5CH2CH(Me)CH2S(CH2)(2)NH(CH2)(2)S}]PF6 (12) from 7. The X-ray crystal structures of 2, 3, and 5-12 are reported.