29887-38-5Relevant articles and documents
Nickel-catalyzed double bond transposition of alkenyl boronates for in situ syn-selective allylboration reactions
Weber, Felicia,Ballmann, Monika,Kohlmeyer, Corinna,Hilt, Gerhard
supporting information, p. 548 - 551 (2016/02/18)
The transposition of a homoallyl pinacol boronic ester was realized by a highly reactive nickel-catalyst system comprising NiCl2(dppp), zinc powder, ZnI2, and Ph2PH. The in situ generated Z-crotyl pinacol boronic esters were reacted with various aldehydes to form syn-homoallylic alcohols in high diastereoselectivities. The present nickel-catalyzed reaction is complementary to the iridium-catalyzed transposition reported by Murakami leading to the corresponding anti-homoallylic alcohols. Also, the multiple transposition of pentenyl pinacol boronic ester was realized.
Barbier-type allylation of carbonyl compounds and imines with metallic cadmium
Sain, Bir,Prajapati, Dipak,Sandhu, Jagir S.
, p. 4795 - 4798 (2007/10/02)
Cadmium mediated allylation of a variety of carbonyl compounds and imines in a Cd/Bu4NBr/THF system afforded excellent yields of the corresponding homoallylic alcohols and amines under very mild reaction conditions.
UN EQUIVALENT SYNTHETIQUE CHIRAL DU PRENAL, LE FORMYL-TRIMETHYLENEMETHANE(FER)TRICARBONYLE. SYNTHESE DU (R)-(-)-IPSDIENOL
Franck-Neumann, Michel,Martina, Daniel,Heitz, Marie-Paule
, p. 6679 - 6682 (2007/10/02)
Formyl-TMM (Iron)tricarbonyl 3 reacts with a high diastereoselectivity with organozinc derivatives to Iron stabilized TMM-alcohols.These are decomplexed, under partial hydrogenation, by photolysis in acetic acid to give allylic and homoallylic isoprenoic alcohols.Starting from the optically active complex (+)-3, this allows a rapid synthesis of (R)-(-)-Ipsdienol of high ee.