Synthesis of the Ruthenaboratranes [Ru(CS)(PPh 3 ){B(mt) 3 }]( Ru→B ) 8 and [Ru(CO)(CNR){B(mt) 3 }]( Ru→B ) 8 (mt = methimazolyl, R = t Bu, C 6 H 3 Me 2 -2,6, C 6 H 2 Me 3 -2,4,6)

Abstract

The reaction of [Ru(CH=CH2)Cl(CS)(PPh3)2] with Na[HB(mt)3] (mt = methimazolyl) provides the ruthenaboratrane [Ru(CS)(PPh3){B(mt)3}]. The reaction of [Ru(CO)(PPh 3){B(mt)3}] with CO to provide [Ru(CO)2{B(mt) 3}] is reversible, while the phosphine-free ruthenaboratranes [Ru(CO)(CNR){B(mt)3}] (R = tBu, C6H 3Me2-2,6, C6H2Me3-2,4,6) form irreversibly upon addition of isonitriles (CNR) to [Ru(CO)(PPh 3){B(mt)3}]. The crystal structures of the ruthenaboratranes [Ru(CS)(PPh3){B(mt)3}J, [Ru(CO)(CN tBu)({B(mt)3)], and [Ru(CO)(CNC6H 2Me3-2,4,6){B(mt)3}] are reported. Show more