Cas 659738-79-1,4H-1,3-Benzodioxin-4-one, 5-[(2R)-2-hydroxy-4-pentenyl]-2,2-dimethyl-

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Check Digit Verification of cas no

The CAS Registry Mumber 659738-79-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,9,7,3 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 659738-79:
(8*6)+(7*5)+(6*9)+(5*7)+(4*3)+(3*8)+(2*7)+(1*9)=231
231 % 10 = 1
So 659738-79-1 is a valid CAS Registry Number.

659738-79-1Upstream product

154714-19-9 5-hydroxy-2,2-dimethyl-4H-benzo[d][1,3]dioxin-4-one

659738-79-1Downstream Products

1603885-68-2 (R)-3-((S,E)-4-(benzyloxy)pent-2-enyl)-8-methoxyisochroman-1-one

659738-79-1Relevant academic research and scientific papers

First enantioselective total synthesis of penicimarin B, aspergillumarins A and B

Yadav, Jhillu Singh,Mishra, Anand Kumar,Dachavaram, Soma Shekar,Ganesh Kumar,Das, Saibal

, p. 2921 - 2923 (2014/05/06)

A convergent enantioselective synthesis of penicimarin B, aspergillumarin A and B has been reported using Brown's allylation, DeBrabander-Bhattacharjee lactonization and Grubbs cross coupling metathesis. During this synthesis we have standardized the conditions for DeBrabande-Bhattacharjee lactonization to obtain excellent yield (>90%).

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