By Ruthenium Catalysts

Bruneau C (2004) Ruthenium Vinylidenes and Allenylidenes in Catalysis. 11 125-153 Bruneau C, D4rien S, Dixneuf PH (2006) Cascade and Sequential Catalytic Transformations Initiated by Ruthenium Catalysts. 19 295-326 Brutchey RL, see Fujdala KL (2005) 16 69-115... 

Scheme 9. Cycloisomerization of pent-4-yn-l-ols catalyzed by ruthenium catalysts bearing electron deficient phosphine ligands.

Cascade and Sequential Catalytic Transformations Initiated by Ruthenium Catalysts... 

The 13 chapters of this book survey a range of fields of organic syntheses promoted by ruthenium catalysts, which involve hydrogenation, oxidation, various carbon-carbon bond formations, C-H activation, carbonylation, isomerization, bond-cleavage reaction, metathesis reaction, and miscellaneous nucleophilic and electrophilic reactions. 

In the hydrogen transfer between propan-2-ol and acetophenone catalyzed by ruthenium catalyst L 2Ru(methallyl)2 (L 2 = chiral diphosphine ligand), Genet et al. observed racemization of a-methylbenzyl alcohol 63 formed as a final product (Scheme 12.8) [28]. 

The reactions of anilines with 1,5-dialcohols catalyzed by ruthenium catalyst, RuCl2 (Ph3)3, are important136 since N-substituted saturated heterocyclic products like piperidines, piperazines or morpholines can be obtained in one step with water as the only side product (equation 15). 

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