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700377-99-7

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700377-99-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 700377-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,0,0,3,7 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 700377-99:
(8*7)+(7*0)+(6*0)+(5*3)+(4*7)+(3*7)+(2*9)+(1*9)=147
147 % 10 = 7
So 700377-99-7 is a valid CAS Registry Number.

700377-99-7Downstream Products

700377-99-7Relevant articles and documents

Phosphine ligands

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Page 11, (2010/02/07)

The invention is concerned with new phosphine ligands of formula I wherein R1 and R2 are independently of each other unsubstituted alkyl, aryl, cycloalkyl or heteroaryl, or alkyl, aryl, cycloalkyl or heteroaryl each of which independently is substituted by alkyl, alkoxy, halogen, hydroxy, amino, mono- or dialkylamino, aryl, —SO2—R7, —SO3?, —CO—NR8R8′, carboxy, alkoxycarbonyl, trialkylsilyl, diarylalkylsilyl, dialkylarylsilyl or triarylsilyl; R3 is alkyl, cycloalkyl, aryl or heteroaryl; R4′ and R4 are independently of each other hydrogen, alkyl or optionally substituted aryl; or R4 and R4 together with the C-atom they are attached, form a 3-8-membered carbocyclic ring; dotted line is optionally a double bond; R5 and R6 are independently of each other hydrogen, alkyl or aryl, R7 is alkyl or aryl; and R8 and R8′ are independently of each other hydrogen, alkyl or aryl; the substituents attached by the bold bonds are in cis relation to each other; metal complexes with such ligands in asymmetric reactions.

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