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88198-68-9

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88198-68-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 88198-68-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,1,9 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 88198-68:
(7*8)+(6*8)+(5*1)+(4*9)+(3*8)+(2*6)+(1*8)=189
189 % 10 = 9
So 88198-68-9 is a valid CAS Registry Number.

88198-68-9Relevant articles and documents

Chiral Chromium Salen@rGO as Multipurpose and Recyclable Heterogeneous Catalyst

Abd El Sater, Mariam,Mellah, Mohamed,Dragoe, Diana,Kolodziej, Emilie,Jaber, Nada,Schulz, Emmanuelle

supporting information, p. 9454 - 9460 (2021/05/26)

The first immobilization of a pyrene-tagged chromium salen complex through π-π noncovalent interactions on reduced graphene oxide (rGO) is described. A very robust supported catalytic system is obtained to promote asymmetric catalysis in repeated cycles, without loss of activity or enantioselectivity. This specific behavior was demonstrated in two different catalytic reactions (up to ten reuses) promoted by chromium salen complexes, the cyclohexene oxide ring-opening reaction and the hetero-Diels-Alder cycloaddition between various aldehydes and Danishefsky's diene. Furthermore, the chiral chromium salen@rGO has been found to be compatible with a multi-substrate type use, in which the structure of the substrate involved is modified each time the catalyst is reused.

Enantiopure (P)- and (M)-3,14-bis(o-hydroxyaryl)tetrahydrobenzo[5]helicenediols and their helicene analogues: Synthesis, amplified circularly polarized luminescence and catalytic activity in asymmetric hetero-Diels–Alder reactions

Fang, Lei,Li, Meng,Lin, Wei-Bin,Chen, Chuan-Feng

, p. 7164 - 7172 (2018/11/23)

Three pairs of enantiopure (P)- and (M)-3,14-bis(o-hydroxyaryl)tetrahydrobenzo[5]helicenediols (ArOH-H[5]HOLs), and enantiomers (P)- and (M)-3,14-bis(o-hydroxyphenyl)benzo[5]helicene-diols (PhOH-[5]HOLs) were designed and synthesized. It was found that co

A Cr(salen)-based metal-organic framework as a versatile catalyst for efficient asymmetric transformations

Xia, Qingchun,Liu, Yan,Li, Zijian,Gong, Wei,Cui, Yong

supporting information, p. 13167 - 13170 (2016/11/09)

A porous Cr(salen)-MOF can serve as an efficient and effective heterogeneous catalyst for a series of important asymmetric transformations including the Nazarov cyclization, aminolysis reaction, and Diels-Alder and hetero Diels-Alder reactions, resulting

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