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Benzenemethanol, a-(1-methyl-2-propenyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

25201-44-9

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25201-44-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25201-44-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,2,0 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 25201-44:
(7*2)+(6*5)+(5*2)+(4*0)+(3*1)+(2*4)+(1*4)=69
69 % 10 = 9
So 25201-44-9 is a valid CAS Registry Number.

25201-44-9Relevant academic research and scientific papers

Cu-catalyzed chemoselective preparation of 2-(pinacolato)boron-substituted allylcopper complexes and their insitu site-, diastereo-, and enantioselective additions to aldehydes and ketones

Meng, Fanke,Jang, Hwanjong,Jung, Byunghyuck,Hoveyda, Amir H.

, p. 5046 - 5051 (2013)

Sustainable, efficient, selective: A three-component, single-vessel Cu-catalyzed method for chemo-, diastereo-, and enantioselective conversion of B2(pin)2, monosubstituted allenes, and aldehydes or ketones to 2-B(pin)-substituted homoallylic alkoxides is described. Subsequent functionalization delivers valuable products in up to >98:2 d.r. and 97:3 e.r. (see scheme). Copyright

First catalytic allyltitanation reactions

Bareille, Laurianne,Le Gendre, Pierre,Moise, Claude

, p. 775 - 777 (2005)

Catalytic allyltitanation reactions were accomplished from dienes and aldehydes with only 5% of titanocene complexes at the expense of employing stoichiometric amounts of PMHS. The Royal Society of Chemistry 2005.

Formation and direct detection of non-conjugated triplet 1,2-biradical from β,γ-vinylarylketone

Sriyarathne, H. Dushanee M.,Thenna-Hewa, Kosala R.S.,Scott, Tianeka,Gudmundsdottir, Anna D.

, p. 1707 - 1714 (2015)

Laser flash photolysis of 2-methyl-1-phenylbut-3-en-1-one (1) conducted at irradiation wavelengths of 266 and 308nm results in the formation of triplet 1,2-biradical 2 that has max at 370 and 480nm. Biradical 2 is formed with a rate constant of 1.1×107s-1 and decays with a rate constant of 2.3×105s-1. Isoprene-quenching studies support the notion that biradical 2 is formed by energy transfer from the triplet-excited state of the ketone chromophore of 1. Density functional theory calculations were used to verify the characterization of triplet biradical 2 and validate the mechanism for its formation. Thus, it has been demonstrated that intramolecular sensitization of simple alkenes can be used to form triplet 1,2-biradicals with the two radical centres localized on the adjacent carbon atoms.

Regioselective allylation reactions using crotyl Grignard reagent-CeCl3 systems

Matsukawa, Satoru,Funabashi, Yohei,Imamoto, Tsuneo

, p. 1007 - 1010 (2003)

Regioselective allylation reactions using crotyl Grignard reagent-CeCl3 systems are described. Regioselectivity depends on the lanthanide salts: α-product was predominantly produced with light rare earth elements such as La, Ce, Pr, Nd, whereas

Allylation of carbonyl compounds in the presence of catalytic electrogenerated zinc. Unusual regioselectivity with a trifluorinated analog of prenyl bromide

Gosmini,Rollin,Perichon,Wakselman,Tordeux,Marival

, p. 6027 - 6034 (1997)

A mild and effective method of electrochemical zinc activation based on the cathodic reduction of a catalytic amount of ZnBr2 in acetonitrile is applied to the coupling of a trifluorinated analog of prenyl bromide with carbonyl compounds and af

Activation of manganese metal by a catalytic amount of PbCl2 and Me3SiCl

Takai, Kazuhiko,Ueda, Takashi,Hayashi, Takaki,Moriwake, Toshio

, p. 7049 - 7052 (1996)

Allylation of carbonyl compounds and the Reformatsky-type reaction are performed with manganese metal which is activated by addition of a catalytic amount of Me3SiCl and PbCl2 in THF.

Regioreversed Addition of But-2-enyltributylstannane to Aldehydes in the Presence of Aluminium Chloride-Propan-2-ol

Yamamoto, Yoshinori,Maeda, Norihiko,Maruyama, Kazuhiro

, p. 742 - 743 (1983)

The reaction of but-2-enyltributylstannane with certain aldehydes in the presence of AlCl3-PriOH produces the α-adduct (3) either predominantly or exclusively, while the reaction in the presence of ordinary Lewis acids, such as TiCl4, SnCl4, an

Reduction of monothioacetals with SmI2: Application to [2,3]-Wittig rearrangement

Nakata, Daisuke,Kusaka, Chie,Tani, Shohei,Kunishima, Munetaka

, p. 415 - 418 (2001)

Simple reduction of O,S-acetals with SmI2 yielding ethers with selective liberation of the sulfenyl group can be accomplished using benzene-HMPA with t-BuOH. When O,S-acetals possess an O-allyl group, the [2,3]-Wittig rearrangement yielding homoallyl alcohols follows the elimination of a sulfenyl group. For chemoselective elimination of an alkoxy group to give sulfides, MeOTf serves as a moderately effective additive.

Nickel-catalyzed indium(I)-mediated double addition of aldehydes to 1,3-dienes

Hirashita, Tsunehisa,Kambe, Shinya,Tsuji, Hiromitsu,Araki, Shuki

, p. 2595 - 2597 (2006)

In the presence of InI, Ni(acac)2 and PPh3, several 1,3-dienes were reacted with two molecules of aldehyde to give the corresponding 1,4- and 1,6-diols. The regioselectivity of the 1,4-/1,6-diol was efficiently regulated by the addit

Enantioselective allylation of aldehydes promoted by chiral sulfur reagents

Melo, Rosanne P.A.,Vale, Juliana A.,Zeni, Gilson,Menezes, Paulo H.

, p. 1829 - 1831 (2006)

The addition of allylzinc bromide to aldehydes was studied with different chiral sulfur compounds acting as a catalyst. Yield differences and enantiomeric excesses were observed.

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