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98988-21-7

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98988-21-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98988-21-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,8 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 98988-21:
(7*9)+(6*8)+(5*9)+(4*8)+(3*8)+(2*2)+(1*1)=217
217 % 10 = 7
So 98988-21-7 is a valid CAS Registry Number.

98988-21-7Downstream Products

98988-21-7Relevant articles and documents

A Convenient Total Synthesis of (+/-)-Bharatamine and (+/-)-Isobharatamine

Patil, Sharadbala D.,Mali, R. S.

, p. 360 - 362 (2007/10/02)

N,N-Dimethylbenzylamine (1) on lithiation with n-butyllithium followed by reaction with paraformaldehyde gives the 2-hydroxymethyl derivative (2). 2 on successive reactions with ClCOOEt, KCN and alc.KOH followed by cyclisation furnishes isochroman-3-one (3).Condensation of 3 with phenylethylamines (4a) and (4b), followed by cyclisation (PCl5), reduction (NaBH4), and debenzylation (EtOH-HCl) gives (+/-)-bharatamine (6c) and (+/-)-3-hydroxy-4-methoxy-5,6,13,13a-tetrahydro-8H-dibenzoquinolizine (isobharatamine, 6d), respectively in high yields.

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