185451-64-3Relevant academic research and scientific papers
Preparation of 1,3-dienyl organotrifluoroborates and their Diels-Alder/cross-coupling reactions
De, Subhasis,Day, Cynthia,Welker, Mark E.
, p. 10939 - 10948 (2007)
2-BF3-substituted 1,3-butadienes with potassium and tetrabutyl ammonium counterions have been prepared in gram quantities from chloroprene via a simple synthetic procedure. The potassium salt of this new main group element substituted diene has
Unusual cleavage of the enolsilane C-O bond: Transformation of 2-silyloxy-1,3-dienes into 1,3-dienyl-2-zirconium compounds and their cross-coupling reactions
Ganchegui,Bertus,Szymoniak
, p. 123 - 125 (2007/10/03)
Aryl enolsilanes and 2-silyloxy-1,3-dienes react with zirconocene to give alkenylzirconium, and novel 1-methylene-2-propenylzirconium compounds which can be used as 2-dienylation reagents. Thus, one-pot coupling of 4-phenyl-1,3-butadienyl-2-zirconocene (2d) with a range of electrophiles including aryl, alkynyl, allyl halides, bromine, iodine and a Michael acceptor occurs regioselectively at the C-2 position in the presence of Pd or Cu catalysts.
Highly efficient synthesis of alka-1,3-dien-2-yltitanium compounds from alka-2,3-dienyl carbonates. A new, practical synthesis of 1,3-dienes and 2-iodo-1,3-dienes
Okamoto, Sentaro,Sato, Hiroyoshi,Sato, Fumie
, p. 8865 - 8868 (2007/10/03)
Treatment of carbonates of alka-2,3-dien-1-ols 2 with (η2-propene)Ti(O-i-Pr)2 (1) resulted in oxidative addition to afford 1,3-dien-2-yltitanium compounds 3, which react readily with electrophiles such as H+, I2
