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769121-30-4

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769121-30-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 769121-30-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,6,9,1,2 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 769121-30:
(8*7)+(7*6)+(6*9)+(5*1)+(4*2)+(3*1)+(2*3)+(1*0)=174
174 % 10 = 4
So 769121-30-4 is a valid CAS Registry Number.

769121-30-4Relevant articles and documents

Thiazole ring-containing amide compounds as well as preparation method and application thereof

-

, (2021/06/23)

The invention discloses thiazole ring-containing amide compounds as well as a preparation method and application thereof, and belongs to the field of chemical technologies and pesticides. According to the present invention, p-phenylenediamine is adopted as a raw material to synthesize a series of the thiazole ring-containing amide compounds, and the synthesized thiazole ring-containing amide compounds have good inhibition effects on Xanthomonas oryzae pv.Oryza (Xoo), Xanthomonas oryzae pv.Oryzcola (Xoc) and Xanthomonas axonophora pv.Citri (Xac) in agricultural diseases and insect pests, and can be used for preparing the anti-plant bacterium agent.

Zinc(II)-Catalyzed Synthesis of Secondary Amides from Ketones via Beckmann Rearrangement Using Hydroxylamine-O-sulfonic Acid in Aqueous Media

Verma, Saumya,Kumar, Puneet,Khatana, Anil K.,Chandra, Dinesh,Yadav, Ajay K.,Tiwari, Bhoopendra,Jat, Jawahar L.

, p. 3272 - 3276 (2020/11/02)

A zinc(II)-catalyzed single-step protocol for the Beckmann rearrangement using hydroxylamine-O-sulfonic acid (HOSA) as the nitrogen source in water was developed. This direct method efficiently produces secondary amides under open atmosphere in a pure form after basic aqueous workup. It isenvironmentally benign and operationally simple.

o-Phthalic Anhydride/Zn(OTf)2 co-catalyzed Beckmann rearrangement under mild conditions

Xu, Ze-Feng,Zhang, Teng,Hong, Wenjun

supporting information, p. 3113 - 3117 (2019/05/08)

o-Phthalic anhydride/Zn(OTf)2 co-catalyzed Beckmann rearrangement was developed, producing the corresponding amide in up to 99% yield with acid-sensitive functionalities tolerated well, and the scale of the reaction could be enlarged to 77 mmol and the excellent yield was maintained. A successive procedure was developed. Moreover, the reaction was carried out at rt under nearly neutral conditions, and the workup was concise. These features illustrated the potential of the protocol in amide synthesis.

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