7070-09-9Relevant articles and documents
Conversion of Carbonyl Compounds to Olefins via Enolate Intermediate
Cao, Zhi-Chao,Xu, Pei-Lin,Luo, Qin-Yu,Li, Xiao-Lei,Yu, Da-Gang,Fang, Huayi,Shi, Zhang-Jie
supporting information, p. 781 - 785 (2019/06/24)
A general and efficient protocol to synthesize substituted olefins from carbonyl compounds via nickel catalyzed C—O activation of enolates was developed. Besides ketones, aldehydes were also suitable substrates for the presented catalytic system to produce di- or tri- substituted olefins. It is worth noting that this approach exhibited good tolerance to highly reactive tertiary alcohols, which could not survive in other reported routes for converting carbonyl compounds to olefins. This method also showed good regio- and stereo-selectivity for olefin products. Preliminary mechanistic studies indicated that the reaction was accomplished through nickel catalyzed C—O activation of enolates, thus offering helpful contribution to current enol chemistry.
Enantioselective hydrogenation with chiral frustrated Lewis Pairs
Chen, Dianjun,Wang, Yutian,Klankermayer, Juergen
supporting information; experimental part, p. 9475 - 9478 (2011/02/23)
No subsequent frustration: Frustrated Lewis pairs (FLPs) have been recently introduced as an unprecedented possibility to activate hydrogen. On the basis of this concept the first example of highly enantioselective catalytic hydrogenation of imines using
Renewable camphor-derived hydroperoxide: Synthesis and use in the asymmetric epoxidation of allylic alcohols
Lattanzi, Alessandra,Iannece, Patrizia,Vicinanza, Assunta,Scettri, Arrigo
, p. 1440 - 1441 (2007/10/03)
Renewable enantiopure tertiary furyl hydroperoxide has been easily synthesized in two steps starting from low cost (+)-(1R)-camphor and it has been used in the asymmetric epoxidation and kinetic resolution of allylic alcohols (enantioselectivities up to 46%).
Palladium complex-catalyzed cross-coupling reaction of organobismuth dialkoxides with triflates
Rao, Maddali L. N.,Shimada, Shigeru,Tanaka, Masato
, p. 1271 - 1273 (2008/02/09)
(matrix presented) Pd(PPh3)4 catalyzes cross-coupling reaction between organobismuth alkoxides and aryl and vinyl triflates.
THE OCTANT RULE XXIII. ANTIOCTANT EFFECTS IN γ,δ-UNSATURATED KETONES
Toan, Vien Van,Lightner, David A.
, p. 5769 - 5774 (2007/10/02)
The exo and endo α-benzyl derivatives (1 and 2. respectively) of (+)-camphor have been synthesized and are found to exert a strong influence on the circular dichroism n?* Cotton effects: 1: Δε301max -0.36 (n-heptane) and 2: Δε302max +3.22, relative to camphor: Δε304max + 1.8 (n-heptane).Evidence for electric dipole transition moment coupling in these γ,δ-unsaturated systems is found in the n?* UV: 1: ε291max 84 (n-heptane) and 2: ε285max 303, relative to camphor: ε290max 25.