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157035-13-7

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157035-13-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157035-13-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,0,3 and 5 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157035-13:
(8*1)+(7*5)+(6*7)+(5*0)+(4*3)+(3*5)+(2*1)+(1*3)=117
117 % 10 = 7
So 157035-13-7 is a valid CAS Registry Number.

157035-13-7Relevant articles and documents

Diastereoselective borocyclopropanation of allylic ethers using a boromethylzinc carbenoid

Benoit, Guillaume,Charette, André B.

supporting information, p. 1364 - 1367 (2017/02/10)

A borocyclopropanation of (E)- and (Z)-allylic ethers and styrene derivatives via the Simmons-Smith reaction using a novel boromethylzinc carbenoid is described. The carbenoid precursor is prepared via a 3-step sequence from inexpensive and commercially available starting materials. This methodology allows for the preparation of 1,2,3-substituted borocyclopropanes in high yields and diastereoselectivities. Several postfunction-alization reactions were also performed to illustrate the versatility of these building blocks.

Synthesis of combretastatin D-2. An efficient route to caffrane macrolactones

Couladouros, Elias A.,Soufli, Ioanna C.

, p. 4409 - 4412 (2007/10/02)

Combretastatin D-2, (1), was synthesized via a 10 step sequence. Macrolactonization was performed saturated substrate 12 in high yield and the double bond was established via dehalogenation of intermediate 15.

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