Welcome to LookChem.com Sign In|Join Free

CAS

  • or

174782-11-7

Post Buying Request

174782-11-7 Suppliers

Recommended suppliersmore

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

174782-11-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 174782-11-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,4,7,8 and 2 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 174782-11:
(8*1)+(7*7)+(6*4)+(5*7)+(4*8)+(3*2)+(2*1)+(1*1)=157
157 % 10 = 7
So 174782-11-7 is a valid CAS Registry Number.

174782-11-7Downstream Products

174782-11-7Relevant articles and documents

Spontaneous Lossen Rearrangement of (Phosphonoformyl)hydroxamates. The Migratory Aptitude of the Phosphonyl Group

Salomon, Claudio J.,Breuer, Eli

, p. 3858 - 3861 (1997)

(i-PrO)2P(=O)COSEt (1) reacted with NH2OH in pyridine at room temperature to give mainly (i-PrO)2P(=O)NH2 (4). The formation of 4 was interpreted in terms of a spontaneous Lossen rearrangement of (i-PrO)2P(=O)CONHOH (2a) formed in the reaction. A transient 31P NMR signal appearing in the reaction mixture at δ-1.8 was assigned to 2a. Trapping of (i-PrO)2P(=O)N=C=O (5), formed in the reaction of 1 and NH2OH, by cyclohexylamine gave (i-PrO)2P(=O)NHCONHC6H11 (6). Attempted isolation of 6 gave the hydrolyzed product N-cyclohexylurea (7). The reaction of 1 with NH2OMe proceeded slower than that with NH2OH and gave the expected (i-PrO)2P(=O)-CONHOMe (2b), which was isolated and identified. 2b converts slowly to 4 in pyridine at room temperature. In contrast, MeNHOH reacted rapidly with 1 and gave the stable crystalline (i-PrO)2P(=O)CON(Me)OH (2c). The structure of hydroxamates 2 were assigned on the basis of 1H, 13C, and 31P NMR spectral data. This facile Lossen rearrangement is discussed in terms of the unusually high migratory aptitude of the phosphonyl group.

Compositions comprising oxophosphonate-based metalloproteinase inhibitors

-

Page/Page column 13, (2008/06/13)

The present invention relates to compositions useful for treating or controlling disease states or conditions associated with zinc containing proteinases, especially metalloproteinases. The active ingredient in these compositions is an alpha-oxo- or alpha

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 174782-11-7