Iodo-alkynyl- and iodo-butadiynyl-ruthenium complexes
摘要:
Addition of [ I( py) 2] BF4 to Ru( C, CH)( dppe) Cp* gave the iodovinylidene [ Ru(@ C@ CHI)( dppe) Cp*] BF4 1, which could be deprotonated to Ru( C, CI)( dppe) Cp* 2. The attempted preparation of Ru( C, C C, CI)( dppe) Cp*, followed by derivatisation with tcne, gave the dienynyl Ru{C, CC[@ C( CN) 2]CI@ C( CN) 2}( dppe) Cp* 3. The Pd( 0)/ Cu( I)- catalysed reaction of 3 with Ru{C, CC, CAu( PPh3)}( dppe) Cp* afforded Ru{C, CC@ C( CN) 2C@ C( CN) 2Au( PPh3)}( dppe) Cp* 4 by formal replacement of I+ by [ Au( PPh3)]+. XRD structures of 1 - 4 are reported. (c) 2008 Elsevier B. V. All rights reserved.
Iodo-alkynyl- and iodo-butadiynyl-ruthenium complexes
摘要:
Addition of [ I( py) 2] BF4 to Ru( C, CH)( dppe) Cp* gave the iodovinylidene [ Ru(@ C@ CHI)( dppe) Cp*] BF4 1, which could be deprotonated to Ru( C, CI)( dppe) Cp* 2. The attempted preparation of Ru( C, C C, CI)( dppe) Cp*, followed by derivatisation with tcne, gave the dienynyl Ru{C, CC[@ C( CN) 2]CI@ C( CN) 2}( dppe) Cp* 3. The Pd( 0)/ Cu( I)- catalysed reaction of 3 with Ru{C, CC, CAu( PPh3)}( dppe) Cp* afforded Ru{C, CC@ C( CN) 2C@ C( CN) 2Au( PPh3)}( dppe) Cp* 4 by formal replacement of I+ by [ Au( PPh3)]+. XRD structures of 1 - 4 are reported. (c) 2008 Elsevier B. V. All rights reserved.