Welcome to LookChem.com Sign In|Join Free

CAS

  • or

187850-36-8

Post Buying Request

187850-36-8 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

187850-36-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187850-36-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,8,5 and 0 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 187850-36:
(8*1)+(7*8)+(6*7)+(5*8)+(4*5)+(3*0)+(2*3)+(1*6)=178
178 % 10 = 8
So 187850-36-8 is a valid CAS Registry Number.

187850-36-8Relevant articles and documents

Asymmetric construction of a quaternary carbon center by tandem [4 + 2]/[3 + 2] cycloaddition of a nitroalkene. The total synthesis of (-)-mesembrine

Denmark, Scott E.,Marcin, Lawrence R.

, p. 1675 - 1686 (1997)

An efficient, total synthesis of the Sceletium alkaloid (-)-mesembrine is accomplished in seven steps and 19% yield from a functionalized nitroalkene (itself prepared in six steps and 34% yield from ethyl 3-bromopropionate). The construction of the octahydroindole framework of mesembrine features a tandem inter [4 + 2]/intra [3 + 2] cycloaddition of a 2,2-disubstituted 1-nitroalkene and a chiral vinyl ether derived from (1R,2S)-2-(1-methyl-1-phenylethyl)cyclohexanol as the central strategic element. The two stereogenic centers of the natural product, which include a benzylic, quaternary center, were established in 26/1 selectivity in the tandem process.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 187850-36-8