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10183-74-1

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10183-74-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 10183-74-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,1,8 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 10183-74:
(7*1)+(6*0)+(5*1)+(4*8)+(3*3)+(2*7)+(1*4)=71
71 % 10 = 1
So 10183-74-1 is a valid CAS Registry Number.
InChI:InChI=1/C12H12N2/c1-2-5-10(6-3-1)11-9-13-14-8-4-7-12(11)14/h1-3,5-6,9H,4,7-8H2

10183-74-1SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-phenyl-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole

1.2 Other means of identification

Product number -
Other names 4H-Pyrrolo[1,2-b]pyrazole,5,6-dihydro-3-phenyl

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:10183-74-1 SDS

10183-74-1Downstream Products

10183-74-1Relevant articles and documents

A divergent strategy to the withasomnines

Foster, Robert S.,Huang, Jianhui,Vivat, Jerome F.,Browne, Duncan L.,Harrity, Joseph P. A.

, p. 4052 - 4056 (2009)

A concise synthesis of three members of the withasomnine family of natural products is reported. The synthesis features a regioselective sydnone-alkynylboronate cycloaddition followed by Suzuki cross coupling and silyl group removal, and marks the first d

Radical cyclisation onto pyrazoles: Synthesis of withasomnine

Allin, Steven M.,Barton, William R.S.,Bowman, W.Russell,McInally, Tom

, p. 4191 - 4193 (2002)

A novel synthetic protocol for the synthesis of [1,2-b]-fused bicyclic pyrazoles has been developed using radical cyclisation. The protocol uses cyclisation of pyrazole-1-(ω-alkyl) radicals generated from 1-[ω-(phenylselenyl)alkyl]-pyrazole precursors. The pyrazole natural product, withasomnine (3-phenyl-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole), and larger ring analogues have been synthesised in good yield using the protocol. A Bu3SnH-mediated oxidative cyclisation mechanism is facilitated by azo or Et3B radical initiators acting as oxidants of the intermediate π-radicals.

5-(Methylthio)tetrazoles as versatile synthons in the stereoselective synthesis of polycyclic pyrazolines via photoinduced intramolecular nitrile imine-alkene 1,3-dipolar cycloaddition

Pla, Daniel,Tan, Derek S.,Gin, David Y.

, p. 2407 - 2415 (2014/05/20)

A key thioether substituent in readily accessible 2-alkyl-5-(methylthio) tetrazoles enables facile photoinduced denitrogenation and intramolecular nitrile imine 1,3-dipolar cycloaddition to afford a wide range of polycyclic pyrazoline products with excellent diastereoselectivity. The methylthio group red-shifts the UV absorbance of the tetrazole, obviating the requirement in all previous substrate systems for at least one aryl substituent, and can subsequently be converted into a variety of other functionalities. This synthetic platform has been applied to the concise total syntheses of the alkaloid natural products (±)-newbouldine and withasomnine. This journal is the Partner Organisations 2014.

Synthesis of withasomnines and their non-natural analogues from aldehydes and 4-nitro-1-butanol in three steps

Verma, Deepti,Kumar, Rahul,Namboothiri, Irishi N. N.

, p. 3482 - 3486 (2013/06/26)

Total synthesis of all three pyrazole-based withasomnine alkaloids and selected examples of their non-natural analogs has been achieved from readily available aldehydes and 4-nitro-1-butanol in three steps. Since 4-nitro-1-butanol in turn is prepared in t

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