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149989-99-1

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149989-99-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 149989-99-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,9,8 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 149989-99:
(8*1)+(7*4)+(6*9)+(5*9)+(4*8)+(3*9)+(2*9)+(1*9)=221
221 % 10 = 1
So 149989-99-1 is a valid CAS Registry Number.

149989-99-1Downstream Products

149989-99-1Relevant articles and documents

Synthesis of ortho-Acylbenzylboronates via Cross-Coupling Reaction of (Dialkoxyboryl)methylzinc Reagents with Haloarenes. A Stable ortho-Quinodimethane Precursor

Kanai, Gen,Miyaura, Norio,Suzuki, Akira

, p. 845 - 848 (2007/10/02)

The cross-coupling reaction of IZnCH2B(OCMe2)2 with iodoarenes in the presence of PdCl2(PPh3)2 produces the corresponding benzylic boronates in high yields.Among them, the benzylic boronates having an acyl group at the ortho position readily undergo the 1,5-rearrangement to the carbonyl oxygen producing the o-quinodimethane derivatives under thermal or photochemical conditions.The reaction provides benzo-fused cycloalkanes by trapping with dienophiles.cross

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