A simple and mild method for decarboxylative bromination of α,β-unsaturated carboxylic acids has been developed using diphosphorus tetraiodide in combination with tetraethylammonium bromide (TEAB) at room temperature. High yields of the corresponding bromoalkenes were obtained.
Telvekar, Vikas N.,Chettiar, Somsundaram N.
p. 4529 - 4532
(2008/02/03)
Mild and efficient method for decarboxylative bromination of α,β-unsaturated carboxylic acids with Dess-Martin periodinane
A simple and mild method for decarboxylative bromination of α,β-unsaturated carboxylic acids has been developed using Dess-Martin Periodinane (DMP) in combination with tetraethylammonium bromide (TEAB) at room temperature. High yields of the corresponding bromoalkenes were obtained. Georg Thieme Verlag Stuttgart.
Telvekar, Vikas N.,Arote, Nitin D.,Herlekar, Omkar P.
p. 2495 - 2497
(2007/10/03)
Synthesis of the Substituted Z-1-Bromo-1-alkenes and Arylacetylenes from 2,3-Dibromocarboxylic Acids
Stereoselectivity was studied of simultaneous debromination-decarboxylation of dibrominated cinnamic and acrylic acids. The best selectivity in formation of Z-vinyl bromides was achieved with the use of organic nitrogen bases. The 1-bromo-1-alkenes were converted into the corresponding acetylenes.
Matveeva,Erin,Kurz
p. 1065 - 1067
(2007/10/03)
ERYTHROSELECTIVITY IN ADDITION OF γ-SUBSTITUTED ALLYLSILANES TO ALDEHYDES IN THE PRESENCE OF TITANIUM CHLORIDE
(E)-Crotyltrimethylsilane and (E)-cinnamyltrimethylsilane were allowed to react with aldehydes (RCHO: t-Bu, i-Pr, Et, Me) in the presence of titanium chloride to give erythro homoallyl alcohols with over 93percent selectivity.Lower erythroselectivity was observed in the reaction of (Z)-allylsilanes.