Reactions of alkenes and alkynes with formaldehyde catalyzed by rhodium systems containing phosphine ligands

Content Provider	Semantic Scholar
Author	Rosales, Merlín González, Beatriz Ruiz Molina, José Pérez, Homero Modroño-Alonso, María Baricelli, Pablo J.
Copyright Year	2017
Abstract	The reaction of alkenes (allyl alcohol, styrene and C6 alkenes) with formaldehyde was efficiently performed by using Rh precatalysts formed in situ by the addition of triphenylphosphine (PPh 3 ), 1,2-bis(diphenylphosphino)ethane (dppe) or 1,1,1-tris(diphenylphosphinomethyl) ethane (triphos) to the complex Rh(acac)(CO) 2 at 130oC in 1,4-dioxane, yielding their corresponding aldehydes; the best catalytic system was Rh(acac)(CO) 2 /2dppe, which generates the cationic complex [Rh(k 2 -P,P-dppe) 2 ] + . However, the reaction of phenylacetylene with formaldehyde under the same reaction conditions generated styrene, which was found to be the product of transfer hydrogenation from formaldehyde.
Starting Page	120
Ending Page	127
Page Count	8
File Format	PDF HTM / HTML
DOI	10.29356/jmcs.v61i2.259
Volume Number	61
Alternate Webpage(s)	http://www.scielo.org.mx/pdf/jmcs/v61n2/1870-249X-jmcs-61-02-00120.pdf
Alternate Webpage(s)	https://doi.org/10.29356/jmcs.v61i2.259
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article