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111752-63-7

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111752-63-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111752-63-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,7,5 and 2 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 111752-63:
(8*1)+(7*1)+(6*1)+(5*7)+(4*5)+(3*2)+(2*6)+(1*3)=97
97 % 10 = 7
So 111752-63-7 is a valid CAS Registry Number.

111752-63-7Relevant articles and documents

Highly Selective Synthesis of Z-Unsaturated Esters by Using New Horner-Emmons Reagents, Ethyl (Diarylphosphono)acetates

Ando, Kaori

, p. 1934 - 1939 (1997)

New Horner-Emmons reagents, ethyl (diarylphosphono)acetates 1, were prepared from triethyl phosphonoacetate, PCl5 the corresponding phenols. The reaction of 1 with several kinds of aldehydes in the presence of Triton B or NaH in THF solvent revealed that these reagents are useful for the synthesis of Z-unsaturated esters. Among the reagents examined, ethyl(di-o-tolylphosphono)-, [bis(o-ethylphenyl)phosphonol-, and [bis(o-isopropylphenyl)phosphono]acetates (1k-m) were found to be the most effective, giving Z-unsaturated esters with 93-99% selectivity.

Highly E-selective solvent-free Horner-Wadsworth-Emmons reaction catalyzed by DBU

Ando, Kaori,Yamada, Kyohei

supporting information; experimental part, p. 1143 - 1146 (2011/06/24)

The solvent-free Horner-Wadsworth-Emmons reaction of triethyl phosphonoacetate with a variety of aldehydes was catalyzed by DBU in the presence of K2CO3 to give E-α,β-unsaturated esters highly selectively (99:1 for most of the reactions). The reaction with ketones gave trisubstituted olefins with good to high E-selectivity by DBU-Cs2CO3.

Diastereoselectivity of the conjugate addition of organocopper reagents to γ-alkoxy α,β-unsaturated carbonyl derivatives. Importance of the reagent type and the double-bond geometry

Yamamoto, Yoshinori,Chounan, Yukiyasu,Nishii, Shinji,Ibuka, Toshiro,Kitahara, Haruo

, p. 7652 - 7660 (2007/10/02)

Systematic investigations of the diastereoselectivity of organocopper conjugate addition to γ-alkoxy trans enoates (3), cis enoates (4), and diesters (5) revealed that the selectivity highly depended on the substrate structure and the reagent type. The an

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