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Materials Congress 2018
Page 55
Nano Research & Applications
ISSN: 2471-9838
W o r l d C o n g r e s s o n
Materials Science & Engineering
A u g u s t 2 3 - 2 5 , 2 0 1 8
Am s t e r d a m , N e t h e r l a n d s
I
onones are fine compounds of isoprenoid nature of high commercial value
that can be synthesized in two stages catalyzed in homogeneous phase:
aldol condensation between citral and acetone catalyzed by a mineral base
to produce pseudoionone (PI), and cyclization of pseudoionone catalyzed by
mineral acid. This route generates operational problems and environmental
pollution, which can be avoided or minimized by the use of heterogeneous
catalysts. In the present work, we report the synthesis of ionones using mixed
oxides (MgO-Al
2
O
3
, CaO-Al
2
O
3
, SrO-Al
2
O
3
, MgO-CaO-Al
2
O
3
and CaO-SrO-Al
2
O
3
)
and sulfated silica as possible catalysts. The materials were characterized by
the techniques, Energy-dispersive X-ray spectroscopy (EDS), discontinuous
Reception (DRX), scanning electron microscopy (SEM), DTP and nitrogen
fisisorción. The reactionmixtureswere analysed by GC-MS technique, obtaining
PI with yield up to 79% with the CaO-Al
2
O
3
oxide, while the best ion one yield
was obtained using silica SBA-15 treated with 1M aqueous solution in H
2
SO
4
:
16% β-ionone at 60°C and 17% α-ionone at 80°C, under reflux conditions. The
production of PS and retinoles during the condensation reaction suggests
that it is possible to synthesize oxide materials with acid/base properties that
promote ionone synthesis in a single step.
Biography
Rodrigo González is currently pursuing PhD in Chemical
Sciences, has completed Master's degree in Semiconductor
Devices and a degree in Chemical Engineering. He has worked
as a Science Teacher in different institutions and participated in
international congresses as Japan or Mexico.
pigoyoyo@hotmail.comSynthesis and characterization of solids with strong acidic and
basic properties, applied as catalysts in the synthesis of ionones
Gonzalez Jimenez Rodrigo Rodolfo
1
, Portillo Reyes Roberto
1
and Hernandez Espinosa Miguel Angel
2
1
Benemerita Universidad Autónoma De Puebla (BUAP), Mexico
2
Research Department in Zeolitas, USA
Gonzalez Jimenez Rodrigo Rodolfo et al., Nano Res Appl 2018, Volume: 4
DOI: 10.21767/2471-9838-C4-018