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81693-62-1

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81693-62-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81693-62-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,9 and 3 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81693-62:
(7*8)+(6*1)+(5*6)+(4*9)+(3*3)+(2*6)+(1*2)=151
151 % 10 = 1
So 81693-62-1 is a valid CAS Registry Number.

81693-62-1Downstream Products

81693-62-1Relevant articles and documents

Amine-directed hydroboration: Scope and limitations

Scheideman, Matthew,Wang, Guoqiang,Vedejs, Edwin

supporting information; experimental part, p. 8669 - 8676 (2009/02/03)

Iodine activation induces intramolecular hydroboration of homoallylic and bis-homoallylic amine boranes with good to excellent control of regiochemistry compared to control experiments using excess THF?BH3. Deuterium labeling and other evidence confirm that the iodine-induced hydroboration reaction of homoallylic amine boranes occurs via an intramolecular mechanism equivalent to the classical 4-center process and without competing retro-hydroboration. Longer carbon chain tethers result in lower regioselectivity, whereas the shorter tether in allylic amines results in a switch to dominant intermolecular hydroboration. Regioselectivity in THF?BH3 control experiments is higher for the allylic amine boranes compared to the iodine activation experiments, whereas the reverse is true for homoallylic amine borane activation.

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