Mohammad Al-Masum, Baillie W. Lott, Nazanin Ghazialsharif
After purging air through the mixture of aldehydes and amino alcohols and microwaved the reaction mixture at 50°C for minutes gave the corresponding oxazinanes, and oxazolidines in excellent yields.
通过醛和氨基醇的混合物吹气，在50℃下微波反应几分钟，得到相应的恶唑烷和恶唑烷，收率很高。
{"title":"An Efficient Reaction Process for the Synthesis of Oxazinanes, and Oxazolidines in the Presence of Air","authors":"Mohammad Al-Masum, Baillie W. Lott, Nazanin Ghazialsharif","doi":"10.4236/IJOC.2012.24049","DOIUrl":"https://doi.org/10.4236/IJOC.2012.24049","url":null,"abstract":"After purging air through the mixture of aldehydes and amino alcohols and microwaved the reaction mixture at 50°C for minutes gave the corresponding oxazinanes, and oxazolidines in excellent yields.","PeriodicalId":64796,"journal":{"name":"有机化学国际期刊(英文)","volume":"43 1","pages":"362-365"},"PeriodicalIF":0.0,"publicationDate":"2012-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70716278","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}
K. Reddy, S. Sana, Kusampally Uppalaiah, K. Rajanna, P. Veerasomaiah
An efficient and greener protocol for the synthesis of 1-halo-naphthols by the action of hydrogen peroxide and alkali metal halides in aqueous micellar media is been described in the present work. This is an environmentally clean and safe procedure, which involved insitu generation of the active halogen in presence of alkali halides. Cationic surfactants such as cetyltrimethylammoniumbromide (CTAB) and cetyltrimethylammoniumchloride (CTAC) were found to facilitate efficiency of halogenation in aqueous media.
{"title":"Environmentally Benign Electrophilic Halogenation of Naphthalenes by H2O2—Alkali Metal Halides in An Aqueous Cationic Micellar Media","authors":"K. Reddy, S. Sana, Kusampally Uppalaiah, K. Rajanna, P. Veerasomaiah","doi":"10.4236/IJOC.2012.23034","DOIUrl":"https://doi.org/10.4236/IJOC.2012.23034","url":null,"abstract":"An efficient and greener protocol for the synthesis of 1-halo-naphthols by the action of hydrogen peroxide and alkali metal halides in aqueous micellar media is been described in the present work. This is an environmentally clean and safe procedure, which involved insitu generation of the active halogen in presence of alkali halides. Cationic surfactants such as cetyltrimethylammoniumbromide (CTAB) and cetyltrimethylammoniumchloride (CTAC) were found to facilitate efficiency of halogenation in aqueous media.","PeriodicalId":64796,"journal":{"name":"有机化学国际期刊(英文)","volume":"10 1","pages":"254-261"},"PeriodicalIF":0.0,"publicationDate":"2012-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70715694","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}
L. Cosimbescu, Liangle Wang, Monte L. Helm, Evgueni Polikarpov, J. Swensen, A. Padmaperuma
We report the design, synthesis and characterization, thermal and photophysical properties of two silane based electron transport materials, dibenzo[b,d]thiophen-2-yltriphenylsilane (Si?87) and (dibenzo[b,d]thiophen-2-yl)diphenylsilane (Siφ88) and their performance in blue organic light emitting devices (OLEDs). The utility of these materials in blue OLEDs with iridium (III) bis[(4,6-difluorophenyl)-pyridinato-N,C2’]picolinate (Firpic) as the phosphorescent emitter was demonstrated. Using the silane Siφ87 as the electron transport material (ETm), an EQE of 18.2% was obtained, with a power efficiency of 24.3 lm/W (5.8V at 1 mA/cm2), in a heterostructure. When Siφ88 is used, the EQE is 18.5% with a power efficiency of 26.0 lm/W (5.5V at 1 mA/cm2).
{"title":"Electron Transport Materials: Synthesis, Properties and Device Performance","authors":"L. Cosimbescu, Liangle Wang, Monte L. Helm, Evgueni Polikarpov, J. Swensen, A. Padmaperuma","doi":"10.4236/IJOC.2012.22016","DOIUrl":"https://doi.org/10.4236/IJOC.2012.22016","url":null,"abstract":"We report the design, synthesis and characterization, thermal and photophysical properties of two silane based electron transport materials, dibenzo[b,d]thiophen-2-yltriphenylsilane (Si?87) and (dibenzo[b,d]thiophen-2-yl)diphenylsilane (Siφ88) and their performance in blue organic light emitting devices (OLEDs). The utility of these materials in blue OLEDs with iridium (III) bis[(4,6-difluorophenyl)-pyridinato-N,C2’]picolinate (Firpic) as the phosphorescent emitter was demonstrated. Using the silane Siφ87 as the electron transport material (ETm), an EQE of 18.2% was obtained, with a power efficiency of 24.3 lm/W (5.8V at 1 mA/cm2), in a heterostructure. When Siφ88 is used, the EQE is 18.5% with a power efficiency of 26.0 lm/W (5.5V at 1 mA/cm2).","PeriodicalId":64796,"journal":{"name":"有机化学国际期刊(英文)","volume":"2 1","pages":"101-110"},"PeriodicalIF":0.0,"publicationDate":"2012-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70713726","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}
L. Shastri, S. Shastri, M. Kulkarni, V. Gupta, S. Goswami
The present study reports the reaction of 4-bromomethylcoumarins with salicylidineaniline in acetone with two equivalents of potassium carbonate resulted in the formation of title compounds at room temperature via intramolecular aldolization. The obtained compound is thermodynamically and kinetically stable with highly stereoselective and excellent yield.
{"title":"Stereoselective Synthesis of cis-Substituted-3’-anilino-2’, 3’-dihydro-4-2’-benzo[b]furanylcoumarins via Intramolecular Aldol Reactions","authors":"L. Shastri, S. Shastri, M. Kulkarni, V. Gupta, S. Goswami","doi":"10.4236/IJOC.2012.21008","DOIUrl":"https://doi.org/10.4236/IJOC.2012.21008","url":null,"abstract":"The present study reports the reaction of 4-bromomethylcoumarins with salicylidineaniline in acetone with two equivalents of potassium carbonate resulted in the formation of title compounds at room temperature via intramolecular aldolization. The obtained compound is thermodynamically and kinetically stable with highly stereoselective and excellent yield.","PeriodicalId":64796,"journal":{"name":"有机化学国际期刊(英文)","volume":"02 1","pages":"44-48"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70713166","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}
Halogenated aluminates AlCl3, applied as efficient chlorination reagent for hydroxyl groups of substitution alcohols is described. Primary and secondary benzylic alcohols could be transformed into corresponding aromatic halides with almost complete conversion and unique selectivity. As chlorination reagent, AlCl3 has an incomparable advantage over others, such as low material cost, commercial availability as well as convenient product isolation.
{"title":"A New Facile Route to Chlorination of Alcohols via Lewis Acid AlCl3","authors":"Hengchang Ma, Zhikang Bao, Li-Jie Bai, W. Cao","doi":"10.4236/IJOC.2012.21004","DOIUrl":"https://doi.org/10.4236/IJOC.2012.21004","url":null,"abstract":"Halogenated aluminates AlCl3, applied as efficient chlorination reagent for hydroxyl groups of substitution alcohols is described. Primary and secondary benzylic alcohols could be transformed into corresponding aromatic halides with almost complete conversion and unique selectivity. As chlorination reagent, AlCl3 has an incomparable advantage over others, such as low material cost, commercial availability as well as convenient product isolation.","PeriodicalId":64796,"journal":{"name":"有机化学国际期刊(英文)","volume":"2 1","pages":"21-25"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4236/IJOC.2012.21004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70713069","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}
In this study, several N-(p-substituted-arylsulfonyl)phthalimides (1a-e) were synthesized. The synthesized compounds were then examined with respect to their substitution reactions with t-butylamine, diethylamine, cyclohexylamine, and trans-1,2-diaminocyclohexane in acetonitrile. In order to determine the mechanism, substituent effect, activation entropy, and nucleophile effect were used as criteria.
{"title":"The Synthesis of Arylsulfonylphthalimides and Their Reactions with Several Amines in Acetonitrile","authors":"S. Ozturk, H. Kutuk","doi":"10.4236/IJOC.2011.14029","DOIUrl":"https://doi.org/10.4236/IJOC.2011.14029","url":null,"abstract":"In this study, several N-(p-substituted-arylsulfonyl)phthalimides (1a-e) were synthesized. The synthesized compounds were then examined with respect to their substitution reactions with t-butylamine, diethylamine, cyclohexylamine, and trans-1,2-diaminocyclohexane in acetonitrile. In order to determine the mechanism, substituent effect, activation entropy, and nucleophile effect were used as criteria.","PeriodicalId":64796,"journal":{"name":"有机化学国际期刊(英文)","volume":"01 1","pages":"202-206"},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70712940","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}
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