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1215285-78-1

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1215285-78-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1215285-78-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,5,2,8 and 5 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1215285-78:
(9*1)+(8*2)+(7*1)+(6*5)+(5*2)+(4*8)+(3*5)+(2*7)+(1*8)=141
141 % 10 = 1
So 1215285-78-1 is a valid CAS Registry Number.

1215285-78-1Downstream Products

1215285-78-1Relevant articles and documents

Enantioselective transfer reaction of phenyl to aldehydes using L-Proline-derived amino alcohols as chiral ligands

Liu, Yongmin,Bo, Rongcheng,Wu, Nan,Qiao, Yuehua,Li, Yong,Wu, Hui,Xu, Zhou

, p. 356 - 360 (2014/05/20)

((S)-1-(1,3,5-trimethyl)benzylpyrrolidin-2-yl)diphenylmethanol (1d) was found to be an effective chiral ligand in the asymmetric transfer reaction of phenyl to aldehydes to give the corresponding adducts in excellent enantioselectivity (up to 98% ee) with very high yields (up to 99%).

Catalytic enantioselective arylation of aldehydes by using functionalized grignard reagents generated from aryl bromides

Itakura, Daisuke,Harada, Toshiro

experimental part, p. 2875 - 2879 (2012/01/03)

An efficient catalytic method has been developed for the enantioselective synthesis of functionalized diarylmethanols starting from aryl bromides and aldehydes. In the presence of (R)-3-(3,5-diphenylphenyl)BINOL (2 mol%) and titanium tetraisopropoxide, fu

Catalytic enantioselective alkylation and arylation of aldehydes by using grignard reagents

Muramatsu, Yusuke,Kanehira, Shinichi,Tanigawa, Masato,Miyawaki, Yuta,Harada, Toshiro

experimental part, p. 19 - 32 (2010/03/25)

We have developed an efficient and practical method for the catalytic enantioselective alkylation and arylation of aldehydes by using Grignard reagents in combination with titanium tetraisopropoxide. Grignard reagents and titanium tetraisopropoxide are mixed in a molar ratio of ca. 1:2. In the presence of catalyst (24mol%), which is formed in situ from a BINOL ligand 4a and 4b and titanium tetraisopropoxide, the resulting mixed titanium reagents undergo addition to aldehydes with high enantioselectivities (typically >90% ee) and high yields. The method is applicable to various combination of aldehydes (R1CHO; R1 = aryl, heteroaryl, 1-alkenyl, and alkyl) and Grignard reagents (R2MgX; R2 = primary alkyl and aryl). Thus, a variety of enantiomerically enriched secondary alcohols (R1CH*(OH)R2) can be prepared. It has also been demonstrated that functionalized aryl Grignard reagents can be employed to generate highly functionalized diarylmethanols. The preparative utility of the method has been shown by the fact that the reaction is operationally simple, can be carried out on a 10-mmol scale without any difficulty, and the ligands can be readily recovered.

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