@article{Rosales_Baricelli_González_Vielma_2021, title={Estudio preliminar de la hidrometoxicarbonilación de 1-hexeno con sistemas catalíticos de níquel conteniendo fosfinas mono- y bidentadas}, volume={27}, url={https://produccioncientificaluz.org/index.php/ciencia/article/view/37129}, DOI={10.5281/zenodo.5593089}, abstractNote={<p><span id="page1R_mcid24" class="markedContent"><span dir="ltr" style="left: 115.114px; top: 486.286px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.05752);" role="presentation">En este trabajo se evaluó la actividad catalítica de sistemas de níquel formados </span></span><span id="page1R_mcid25" class="markedContent"><span dir="ltr" style="left: 716.78px; top: 486.286px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.08282);" role="presentation">in situ</span></span><span id="page1R_mcid26" class="markedContent"><span dir="ltr" style="left: 764.734px; top: 486.286px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.03429);" role="presentation"> por adición de </span></span><span id="page1R_mcid27" class="markedContent"><span dir="ltr" style="left: 92.1119px; top: 504.155px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.12141);" role="presentation">fosfinas mono- (PPh</span></span><span id="page1R_mcid28" class="markedContent"><span dir="ltr" style="left: 241.983px; top: 514.64px; font-size: 9.47058px; font-family: serif;" role="presentation">3</span></span><span id="page1R_mcid29" class="markedContent"><span dir="ltr" style="left: 247.209px; top: 504.15px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.03686);" role="presentation">) y bidentadas (dppe, dppp and dppb) a NiCl</span></span><span id="page1R_mcid30" class="markedContent"><span dir="ltr" style="left: 581.137px; top: 514.64px; font-size: 9.47058px; font-family: serif;" role="presentation">2</span></span><span id="page1R_mcid31" class="markedContent"><span dir="ltr" style="left: 586.427px; top: 504.15px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.1206);" role="presentation">.6H</span></span><span id="page1R_mcid32" class="markedContent"><span dir="ltr" style="left: 613.237px; top: 514.64px; font-size: 9.47058px; font-family: serif;" role="presentation">2</span></span><span id="page1R_mcid33" class="markedContent"><span dir="ltr" style="left: 618.527px; top: 504.15px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.12388);" role="presentation">O para la hidrometoxicarbonilación </span></span><span id="page1R_mcid34" class="markedContent"><span dir="ltr" style="left: 92.0895px; top: 522.019px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.10988);" role="presentation">homogénea de 1- hexeno en presencia de monóxido de carbono y de un ácido. El sistema Ni/4PPh</span></span><span id="page1R_mcid35" class="markedContent"><span dir="ltr" style="left: 801.258px; top: 532.509px; font-size: 9.47058px; font-family: serif;" role="presentation">3</span></span><span id="page1R_mcid36" class="markedContent"><span dir="ltr" style="left: 806.483px; top: 522.019px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.12265);" role="presentation"> mostró la </span></span><span id="page1R_mcid37" class="markedContent"><span dir="ltr" style="left: 92.0961px; top: 539.888px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.02055);" role="presentation">mayor actividad en presencia de 10 equivalentes de ácido </span></span><span id="page1R_mcid38" class="markedContent"><span dir="ltr" style="left: 515.131px; top: 539.888px; font-size: 16.2446px; font-family: serif;" role="presentation">p</span></span><span id="page1R_mcid39" class="markedContent"><span dir="ltr" style="left: 524.52px; top: 539.888px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.0505);" role="presentation">-toluensulfónico, bajo condiciones moderadas de </span></span><span id="page1R_mcid40" class="markedContent"><span dir="ltr" style="left: 92.0961px; top: 557.757px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.08975);" role="presentation">temperatura y presión (140 ºC, 50 atm de CO), obteniendo los ésteres heptanoato de metilo y 2-metilhexanoato </span></span><span id="page1R_mcid41" class="markedContent"><span dir="ltr" style="left: 92.0961px; top: 575.626px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.13206);" role="presentation">de metilo (relaciones n/i &lt; 1). Los sistemas Ni/difosfinas mostraron actividades catalíticas menores que los </span></span><span id="page1R_mcid42" class="markedContent"><span dir="ltr" style="left: 92.0961px; top: 593.495px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.14288);" role="presentation">sistemas Ni/4PPh</span></span><span id="page1R_mcid43" class="markedContent"><span dir="ltr" style="left: 222.624px; top: 603.985px; font-size: 9.47058px; font-family: serif;" role="presentation">3</span></span><span id="page1R_mcid44" class="markedContent"><span dir="ltr" style="left: 227.849px; top: 593.495px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.04969);" role="presentation">, mostrando la tendencia dppe &gt; dppp ~ dppb. Los resultados experimentales</span></span><span id="page1R_mcid45" class="markedContent"> </span><span id="page1R_mcid46" class="markedContent"> <span dir="ltr" style="left: 803.963px; top: 593.495px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.13553);" role="presentation">mostraron </span></span><span id="page1R_mcid47" class="markedContent"><span dir="ltr" style="left: 92.0934px; top: 611.364px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.09119);" role="presentation">que la reacción de hidrometoxicarbonilación procede a través de un intermediario que presenta un solo ligando </span></span><span id="page1R_mcid48" class="markedContent"><span dir="ltr" style="left: 92.0934px; top: 629.233px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.08803);" role="presentation">trifenilfosfina, posiblemente [NiH(CO)</span></span><span id="page1R_mcid49" class="markedContent"><span dir="ltr" style="left: 369.665px; top: 639.723px; font-size: 9.47058px; font-family: serif;" role="presentation">2</span></span><span id="page1R_mcid50" class="markedContent"><span dir="ltr" style="left: 374.955px; top: 629.233px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.11854);" role="presentation">(PPh</span></span><span id="page1R_mcid51" class="markedContent"><span dir="ltr" style="left: 410.315px; top: 639.723px; font-size: 9.47058px; font-family: serif;" role="presentation">3</span></span><span id="page1R_mcid52" class="markedContent"><span dir="ltr" style="left: 415.541px; top: 629.233px; font-size: 16.2446px; font-family: serif; transform: scaleX(1.12462);" role="presentation">)]</span></span><span id="page1R_mcid53" class="markedContent"><span dir="ltr" style="left: 427.724px; top: 628.905px; font-size: 9.47058px; font-family: serif;" role="presentation">+</span></span><span id="page1R_mcid54" class="markedContent"><span dir="ltr" style="left: 433.814px; top: 629.233px; font-size: 16.2446px; font-family: serif;" role="presentation">.</span></span></p&gt;}, number={1-2}, journal={Ciencia}, author={Rosales, Merlín and Baricelli, Pablo and González, Ángel and Vielma, Wilmer}, year={2021}, month={nov.}, pages={31-37} }