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16507-88-3

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16507-88-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16507-88-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,5,0 and 7 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 16507-88:
(7*1)+(6*6)+(5*5)+(4*0)+(3*7)+(2*8)+(1*8)=113
113 % 10 = 3
So 16507-88-3 is a valid CAS Registry Number.

16507-88-3Downstream Products

16507-88-3Relevant articles and documents

Chiral Acylsilanes in Organic Synthesis. Diastereoselective 1,2 Additions to Racemic Alkoxymethyl-Substituted Acylsilanes

Bienz, Stefan,Chapeaurouge, Alexander

, p. 1477 - 1488 (2007/10/02)

The synthesis of the three alkoxymethyl-sustituted acylsilanes 1-3 is described (Schemes 1 and 2).Their reactions with NaBH4 as well as PhLi gave the corresponding alcohols with moderate to good diastereoisomeric induction (up to 78percent de; see Table), depending upon the solvent used (Scheme 3).The results indicate that in Et2O, the reactions with PhLi proceed via 6-membered chelates (see C in Scheme 4) leading to the products with high de's (74 - 78percent).In THF, these chelates are not formed, and as a consequence, the additions take place with reversed and lower stereoselectivities (34 - 50percent de).

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