ECSOC-25Pub Date : 2021-11-14DOI: 10.3390/ecsoc-25-11776
P. Kovyazin, P. Ivchenko, I. Nifant’ev, L. Parfenova
{"title":"Synthesis of Dibenzylbutane and 9,8′-Neo-Lignans via Cyclometalation of Allylbenzene by EtAlCl2 and Mg in the Presence of Zr ansa-Complexes","authors":"P. Kovyazin, P. Ivchenko, I. Nifant’ev, L. Parfenova","doi":"10.3390/ecsoc-25-11776","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11776","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76103743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ECSOC-25Pub Date : 2021-11-14DOI: 10.3390/ecsoc-25-11700
Vanina A. Guntero, C. Ferretti
{"title":"Valorization of Orange Peels as a Source of Pectins","authors":"Vanina A. Guntero, C. Ferretti","doi":"10.3390/ecsoc-25-11700","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11700","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76222139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ECSOC-25Pub Date : 2021-11-14DOI: 10.3390/ecsoc-25-11706
N. Medjahed, Z. Kibou, A. Berrichi, R. Bachir, N. Choukchou-Braham
{"title":"Synthesis of Bis-Hydrazine Using Heterogeneous Catalysis","authors":"N. Medjahed, Z. Kibou, A. Berrichi, R. Bachir, N. Choukchou-Braham","doi":"10.3390/ecsoc-25-11706","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11706","url":null,"abstract":": Hydrazine derivatives are known as a group of organic compounds containing C=N-N=C functional groups. This π -conjugated system enables electronic excitation in the visible and near-ultraviolet regions. This is of particular interest for many applications, such as corrosion inhibition dye-sensitized solar cells (DSSC), organogels, and fluorescent probes for analytical testing. In addition, many hydrazine derivatives show notable biological and therapeutic activities such as the treatment of tuberculosis, Parkinson’s disease, and hypertension. Schiff bases form a remarkable class of ligands because of their unique properties, such as stability under different conditions, diversity of donor sites, the flexibility of synthesis, and formation of ranges in various coordination geometries in a wide range of complexes. Their complexes have received widespread attention due to their wide range of applications, such as catalysis, electrochemistry, biological sciences, optics, guest chemistry, and molecular recognition. Therefore, from theoretical and practical points of view, the synthesis of hydrazine derivatives is an important issue. In the present study, we describe a new, efficient, and environmentally benign synthetic method for the formation of hydrazine derivatives with heterogeneous catalysis starting from ketones.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"174 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75711596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ECSOC-25Pub Date : 2021-11-14DOI: 10.3390/ecsoc-25-11686
M. A. Sequeira, Marcos J. Lo Fiego, Juan Daniel Coria, M. J. Castro, M. B. Faraoni
{"title":"Identification of Vitamin D3 Hydroxylated Metabolites in Solanum glaucophyllum Leaves: Towards Its Biosynthetic Pathway Elucidation","authors":"M. A. Sequeira, Marcos J. Lo Fiego, Juan Daniel Coria, M. J. Castro, M. B. Faraoni","doi":"10.3390/ecsoc-25-11686","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11686","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73695902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ECSOC-25Pub Date : 2021-11-14DOI: 10.3390/ecsoc-25-11785
Fidel Rodríguez-López, Hugo A. García-Gutiérrez, Rocío Gámez-Montaño
{"title":"Synthesis of Triterpenoid-Derived α-Acyloxycarboxamides via Passerini Reaction","authors":"Fidel Rodríguez-López, Hugo A. García-Gutiérrez, Rocío Gámez-Montaño","doi":"10.3390/ecsoc-25-11785","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11785","url":null,"abstract":": Herein we describe the synthesis of a small series of α -acyloxycarboxamides via a facile and efficient one-pot procedure, employing a plant-derived triterpenoid as carboxylic acid component. The products were obtained in overall yields of 25 to 79%, while we scoped the effect of the nature of the aldehyde component on the reaction yields.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72723018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ECSOC-25Pub Date : 2021-11-14DOI: 10.3390/ecsoc-25-11731
C. Rojas, C. D. Alcívar León, E. Contreras Aguilar, Paola V. Mazón Ayala, Doménica Muñoz
{"title":"Quantitative Structure–Property Relationship for the Retention Index of Volatile and Semi-Volatile Compounds of Coffee","authors":"C. Rojas, C. D. Alcívar León, E. Contreras Aguilar, Paola V. Mazón Ayala, Doménica Muñoz","doi":"10.3390/ecsoc-25-11731","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11731","url":null,"abstract":": This study describes the development of a quantitative structure–property relationship to predict the retention indices of volatile and semi-volatile compounds identified in Arabica coffee samples from different geographical origins. The analytical method utilized rapid headspace solid-phase microextraction (HSSPME)–gas chromatography–time-of-flight mass spectrometry (GC-TOFMS) data measured in divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS) fiber. A total of 102 molecules were optimized with the PM6/ZDO level of theory in order to calculate several molecular descriptors. Ordinary least squares were coupled with genetic algorithm–supervised variable subset selection to find the best three descriptors. For model validation, the dataset was split into a training set (70%) and a test set (30%). The quality of the model was evaluated by means of the coefficient of determination and the root-mean-square error.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74736510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ECSOC-25Pub Date : 2021-11-14DOI: 10.3390/ecsoc-25-11728
Tatiana F. Vieira, Rita P. Magalhães, S. Sousa
{"title":"Development and Validation of a Multi-Level Computational Protocol for Drug Repurposing in the Treatment of Bacterial Infections","authors":"Tatiana F. Vieira, Rita P. Magalhães, S. Sousa","doi":"10.3390/ecsoc-25-11728","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11728","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73149001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ECSOC-25Pub Date : 2021-11-14DOI: 10.3390/ecsoc-25-11774
Yemin Zheng, Jaime A. Martinez‐Acosta, Mohammed Khimji, L. Barbosa, G. Clarkson, M. Wills
{"title":"Asymmetric Transfer Hydrogenation of Aryl Heteroaryl Ketones and o-Hydroxyphenyl Ketones Using Noyori-Ikariya Catalysts","authors":"Yemin Zheng, Jaime A. Martinez‐Acosta, Mohammed Khimji, L. Barbosa, G. Clarkson, M. Wills","doi":"10.3390/ecsoc-25-11774","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11774","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"101 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73535624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ECSOC-25Pub Date : 2021-11-14DOI: 10.3390/ecsoc-25-11704
I. Islamov, A. Yusupova, L. Dzhemileva, U. Dzhemilev
{"title":"Targeted Synthesis and Antitumor Activity In Vitro Macrodiolides Containing 1Z,5Z-Diene and 1,3-Diyne Moieties","authors":"I. Islamov, A. Yusupova, L. Dzhemileva, U. Dzhemilev","doi":"10.3390/ecsoc-25-11704","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11704","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90967293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ECSOC-25Pub Date : 2021-11-14DOI: 10.3390/ecsoc-25-11715
Mariana Celman, Leandro G. Gutierrez, Carla M. Ormachea, C. Ferretti
{"title":"Evaluation of the Recovery of Furfural from Wood Scraps","authors":"Mariana Celman, Leandro G. Gutierrez, Carla M. Ormachea, C. Ferretti","doi":"10.3390/ecsoc-25-11715","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11715","url":null,"abstract":": 2-furfuraldehyde, commonly known as furfural, is a product of the hydrolysis and dehydration of pentose carbohydrates contained in lignocellulosic. Furfural is currently a commodity chemical, identified as one of the most promising chemical platforms directly derived from biomass, to produce chemicals, biofuels, and additives. Wood scraps are a good source of natural pentoses that contains up to 25%. Taking this into account, the goal of the research was to evaluate the recovery of furfural from wood scraps. The process of recovery of furfural was carried out by acid-catalyzed pentoses dehydration, associated with a hydrodistillation. As a catalyst, we used a solution of hydrochloric acid of 10% wt. The physicochemical analysis of the samples obtained allowed us to characterize and evaluate the recovery process. The results showed that under the experimental conditions evaluated, the degree of recovery of furfural was about 5%.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80219257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}