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28218-20-4

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28218-20-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28218-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,2,1 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 28218-20:
(7*2)+(6*8)+(5*2)+(4*1)+(3*8)+(2*2)+(1*0)=104
104 % 10 = 4
So 28218-20-4 is a valid CAS Registry Number.

28218-20-4Downstream Products

28218-20-4Relevant articles and documents

Tandem aldol condensation-Diels-Alder-aromatization sequence of reactions: A new pathway for the synthesis of 2-tetralone derivatives

Abaee, M. Saeed,Doustkhah, Esmail,Mohammadi, Mohaddeseh,Mojtahedi, Mohammad M.,Harms, Klaus

, p. 733 - 737 (2016)

A series of new polysubstituted derivatives of 2-tetralones possessing two ester groups were synthesized via a tandem aldol condensation-Diels-Alder-aromatization sequence of reactions. All the three steps took place in one pot and in the presence of amin

Vinyl nosylates: An ideal partner for palladium-catalyzed cross-coupling reactions

Cheval, Nicolas P.,Dikova, Anna,Blanc, Aurelien,Weibel, Jean-Marc,Pale, Patrick

, p. 8765 - 8768 (2013/07/26)

In a hurry to leave! Nosylates act as an excellent leaving group in various palladium-catalyzed cross-couplings, such as Suzuki, Stille, Heck, and Sonogashira reactions (see scheme). Crystalline, stable, and cheap vinyl and aryl nosylates proved better th

A novel and efficient tandem aldol condensation-Diels-Alder reaction pathway for the direct synthesis of dehydrodecaline derivatives

Abaee, M. Saeed,Mojtahedi, Mohammad M.,Saberi, Farveh,Karimi, Ghazal,Rezaei, M. Taghi,Mesbah, A. Wahid,Harms, Klaus,Massa, Werner

, p. 2073 - 2076 (2012/10/30)

An efficient direct synthesis of dehydrodecaline derivatives is reported via a tandem aldol condensation-Diels-Alder cycloaddition process under Lewis acidic conditions. Addition of dienophile moieties to conjugated dienes, formed in situ from the condens

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