31508-12-0Relevant articles and documents
Accessing 1,3-Dienes via Palladium-Catalyzed Allylic Alkylation of Pronucleophiles with Skipped Enynes
Gao, Shang,Liu, Hao,Yang, Chi,Fu, Zhiyuan,Yao, Hequan,Lin, Aijun
supporting information, p. 4710 - 4713 (2017/09/23)
An unprecedented palladium-catalyzed allylic alkylation of pronucleophiles with unactivated skipped enynes has been developed. This method provides a straightforward access to a wide array of 1,3-dienes without the need to preinstall leaving groups or employ extra oxidants. The reaction exhibited high atom economy, good functional group tolerance, excellent regioselectivities, and scalability. With D2O as cosolvent, deuterium could be incorporated in high efficiency.
Violet leaves odorants
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Page/Page column 9, (2015/09/23)
The present invention relates to the use as perfuming ingredient of a compound of formula in the form of any one of its stereoisomers or a mixture thereof, and wherein each R1 represents a hydrogen atom or a methyl group and at least one of said R1 is a hydrogen atom; R2 represents a linear or branched C3-8 alkyl group or unsaturated groups; and R3 represents a hydrogen atom or a methyl group; in particular to impart odor notes of the violet leaves type optionally together with green odor notes.
Copper catalyzed regioselective coupling of allylic halides and alkynes promoted by weak inorganic bases
Bieber, Lothar W.,da Silva, Margarete F.
, p. 7088 - 7090 (2008/03/11)
Allylic halides and terminal alkynes couple under CuI catalysis in DMSO or DMF solution. In most cases, sodium carbonate or bicarbonate is sufficient to promote the reaction; less reactive alkynes require catalytic amounts of DBU. Bifunctional alkynes and halides can be reacted selectively according to the stoichiometry used. Trimethylsilyl, hydroxyl, ester and halide groups are tolerated in the alkyne. Most halides react without allylic rearrangement. The method is suitable for the synthesis of functionalized enynes.