4,6-Diphenyl-2H-pyran-2-one

4,6-diphenyl-2H-pyran-2-one; 17372-52-0; 4,6-Diphenyl-2-pyrone; 4,6-diphenylpyran-2-one;
Molecular Formula:

	C17H12O2
Molecular Weight:	248.27598 g/mol

4,6-Diphenyl-2H-pyran-2-one .


 

 MOM WILL TEACH YOU NMR

1H NMR (400 MHz, CDCl3) δ 7.93-7.88 O O (m, 2H), 7.67-7.64 (m, 2H), 7.52-7.48 (m, 6H), 6.97 (d, J = 1.6 Hz, 1H), 6.48 (d, J = 1.6 Hz, 1H).

13C NMR (100 MHz, CDCl3) δ 162.68, 160.40, 155.61, 136.06, 131.66, 130.94, 130.70, 129.26, 128.98, 126.74, 125.77, 109.27, 101.39. 


IR (neat, cm-1) ν 3101, 3059, 2927, 1703, 1628, 1535, 1497, 1454, 849, 764, 688. 

HRMS (ESI, m/z) calcd for C17H12O2Na [M+Na]+ : 271.0735, found: 271.0728.

GC-MS

GC-MS: 1 of 1
NIST Number	401324
Library	Main library
Total Peaks	55
m/z Top Peak	220
m/z 2nd Highest	248
m/z 3rd Highest	191
Thumbnail

Carbon dioxide is a green carboxylative reagent due to its non-toxic and renewable properties. Described herein is a carboxylative cyclization of substituted 1-propenyl ketones via γ-carboxylation using CO₂, which provides an efficient, transition-metal-free and straightforward access to important α-pyrone compounds from easily available substrates and CO₂.

Communication

 

 

 Carboxylative cyclization of substituted propenyl ketones using CO₂: transition-metal-free synthesis of α-pyrones

Wen-Zhen Zhang,*^a   Ming-Wang Yang^a and   Xiao-Bing Lu^a  

*

Corresponding authors

^a

State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P. R. China 
E-mail: zhangwz@dlut.edu.cn

Green Chem., 2016, Advance Article

DOI: 10.1039/C6GC01346E

http://pubs.rsc.org/en/Content/ArticleLanding/2016/GC/C6GC01346E?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+rss%2FGC+%28RSC+-+Green+Chem.+latest+articles%29#!divAbstract

Patent ID

	Date	Patent Title
US5230985	1993-07-27	NEGATIVE-WORKING RADIATION-SENSITIVE MIXTURES, AND RADIATION-SENSITIVE RECORDING MATERIAL PRODUCED WITH THESE MIXTURES
US5229254	1993-07-20	POSITIVE-WORKING RADIATION-SENSITIVE MIXTURES, AND RADIATION-SENSITIVE RECORDING MATERIALS PRODUCED WITH THESE MIXTURES
EP0282365	1993-05-12	1-DETHIA-2-THIA-CEPHALOSPORANIC-ACID DERIVATIVES, PROCESS FOR THEIR PREPARATION, THEIR USE AS THERAPEUTIC AGENTS AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
US4908359	1990-03-13	1-dethia-2-thia-cephalosporanic acids
US3972888	1976-08-03	Process for the preparation of 1-hydroxy-pyridones
US3074915	1963-01-22	Diels-alder polymers

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Playa de la Arena, Santa Cruz de Tenerife, Spain

 

 

 

 

 

 

 

 

 
 
 
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Easy Preparation of Alkyl Amides

Simple method for making amides from alkyl iodides, amines, and a CO source

Read more

SEE

http://www.chemistryviews.org/details/ezine/9444071/Easy_Preparation_of_Alkyl_Amides.html?elq_mid=10462&elq_cid=1558306

A novel, mild and facile preparation of alkyl amides from unactivated alkyl iodides employing a fac-Ir(ppy)3-catalyzed radical aminocarbonylation protocol has been developed. Using a two-chambered system, alkyl iodides, fac-Ir(ppy)3, amines, reductants, and CO gas (released ex situ from Mo(CO)6), were combined and subjected to an initial radical reductive dehalogenation generating alkyl radicals, and a subsequent aminocarbonylation with amines affording a wide range of alkyl amides in moderate to excellent yields.

• Mild and Low-Pressure fac-Ir(ppy)₃-Mediated Radical Aminocarbonylation of Unactivated Alkyl Iodides through Visible-Light Photoredox Catalysis,
  Shiao Y. Chow, Marc Y. Stevens, Linda Åkerbladh, Sara Bergman, Luke R. Odell,
  Chem. Eur. J. 2016.
  DOI: 10.1002/chem.201601694

N-isopropylcyclohexanecarboxamide[2] (1a) (CAS 6335-52-0)
Prepared following the general procedure. Spectral data were in agreement with literature values. White solid (39 mg, 78%), Rf = 0.10 (10% EtOAc in n-pentane).

1H NMR (400 MHz, CDCl3): δ 5.19 (s, 1H), 4.07 (dt, J = 8.0, 6.6 Hz, 1H), 2.00 (tt, J = 11.7, 3.5 Hz, 1H), 1.89–1.72 (m, 4H), 1.74–1.52 (m, 1H), 1.48–1.35 (m, 2H), 1.31–1.18 (m, 3H), 1.13 (d, J = 6.6 Hz, 6H).

13C{1H} NMR (100 MHz, CDCl3): δ 175.4, 45.8, 41.1, 29.9, 25.9, 23.0. EI-MS: m/z 169.2.

2] O. Itsenko, T. Kihlberg, B. Långström, J. Org. Chem. 2004, 69, 4356–4360.

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Sunset at Tenerife Island — in Tenerife.

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Tenerife

Island in Spain

Tenerife, the largest of Spain’s Canary Islands, off West Africa, is dominated by Mt. Teide, which rises 7,500m above the ocean floor and is among the world’s largest volcanoes. Still, Tenerife may be best known for its huge pre-Lent Carnival, as well as its beaches (with sands from yellow to black) and busy, upscale resorts, including Los Cristianos and Playa de las Américas.

 

 

 

 
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