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1,9-diphenyl-1,8-nonadiyne-3,7-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

303142-47-4

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303142-47-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 303142-47-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,1,4 and 2 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 303142-47:
(8*3)+(7*0)+(6*3)+(5*1)+(4*4)+(3*2)+(2*4)+(1*7)=84
84 % 10 = 4
So 303142-47-4 is a valid CAS Registry Number.

303142-47-4Relevant academic research and scientific papers

Asymmetric transfer hydrogenation of functionalized acetylenic ketones

Fang, Zhijia,Wills, Martin

, p. 8594 - 8605 (2013/09/24)

A systematic study of the asymmetric transfer hydrogenations of functionalized acetylenic ketones and diketones has been completed, together with a total synthesis of (S,S)-(-)-yashabushidiol B. In several cases, excellent enantioselectivities and yields

The Photo-Dehydro-Diels-Alder (PDDA) reaction - A powerful method for the preparation of biaryls

Wessig, Pablo,Mueller, Gunnar,Pick, Charlotte,Matthes, Annika

, p. 464 - 477 (2007/12/27)

The photochemically initiated dehydro-Diels-Alder (PDDA) reaction is an efficient and versatile method for the preparation of biaryls. The ring closure may take place both inter- and intramolecularly, of which the intramolecular variant is more productive

Synthesis and protein degradation capacity of photoactivated enediynes

Fouad, Farid S.,Wright, Justin M.,Plourde II, Gary,Purohit, Ajay D.,Wyatt, Justin K.,El-Shafey, Ahmed,Hynd, George,Crasto, Curtis F.,Lin, Yiqing,Jones, Graham B.

, p. 9789 - 9797 (2007/10/03)

The viability of proteins as targets of thermally and photoactivated enediynes has been confirmed at the molecular level. Model studies using a labeled substrate confirmed the efficacy of atom transfer from diyl radicals produced from enediynes to form captodatively stabilized carbon centered aminoacyl radicals, which then undergo either fragmentation or dimerization. To exploit this finding, a family of enediynes was developed using an intramolecular coupling strategy. Derivatives were prepared and used to target specific proteins, showing good correlation between affinity and photoinduced protein degrading activity. The findings have potential applications in the design of artificial chemical proteases and add to our understanding of the mechanism of action of the clinically important enediyne antitumor antibiotics.

The photo-dehydro-diels-alder reaction: An efficient route to naphthalenes

Wessig, Pablo,Mueller, Gunnar,Kuehn, Andreas,Herre, Robert,Blumenthal, Haiko,Troelenberg, Stefanie

, p. 1445 - 1454 (2007/10/03)

The photo-dehydro-Diels-Alder reaction (PDDA), a new photochemical route to naphthalenes is presented. The [4+2] cycloaddition takes place between 3-arylynones and arylacetylenes. in which these moieties may be located in two molecules (intermolecular PDD

Synthesis of carbonyl and dicarbonyl compounds from organometallic reagents and N-imidazolium-N-methyl amides and bis-amides

De Las Heras, Maria A.,Vaquero, Juan J.,Garcia Navio, Jose L.,Alvarez-Builla, Julio

, p. 14297 - 14310 (2007/10/03)

A new method for the synthesis of selective acylating agents is described from the reaction of carboxylic acids with 3-methyl-1-methylamino-3H-imidazol-1-ium salts in the presence of appropriate coupling reagents. The amides and bis-amides thus prepared reacted selectively with organometallics to afford ketones and diketones and with DIBALH to give aldehydes and dialdehydes in high yields.

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