96185-13-6Relevant academic research and scientific papers
A PALLADIUM-PROMOTED ROUTE TO 3-ALKYL-4-(1-ALKYNYL)-HEXA-1,5-DYN-3-ENES AND/OR 1,3-DYENES
Rossi, Renzo,Carpita, Adriano,Bigelli, Clara
, p. 523 - 526 (2007/10/02)
Reaction of benzene solutions of arylacetylenes with 1 equiv. of chloroacetone and 2 eqiuv. of Et3N, using a mixture of (PPh3)4Pd and CuJ as catalyst, affords 1,4-diaryl-butadiynes in very good yields.Under similar reaction conditions aliphatic 1-alkynes yield mixtures of simmetrically disubstituted 1,4-dialkyl-1,3-butadiynes and of 3-alkyl-4-(1-alkynyl)-hexa-1,5-diyn-3-enes.
Silyl Phosphites. XVIII. Versatile Utility of α-(Trimethylsilyloxy)-alkylphosphonates as Key Intermediates for Transformation of Aldehydes into Several Carbonyl Derivatives
Sekine, Mitsuo,Nakajima, Masashi,Kume, Akiko,Hashizume, Akio,Hata, Tsujiaki
, p. 224 - 238 (2007/10/02)
Carbonyl addition compounds of diethyl trimethylsilyl phosphite (DTMSP) with aldehydes were converted, by treatment with lithium diisopropylamide (LDA) followed by the successive alkylation and alkaline hydrolysis, to carbonyl derivatives involving aldehydes, unsymmetrical ketones, β,γ-unsaturated ketones, and carboxylic acids. β-Substituted carboxylic esters and γ-substituted lactones were prepared by use of the carbonyl addition compounds of DTMSP with α,β-unsaturated aldehydes.
