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277326-12-2

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277326-12-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 277326-12-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,7,3,2 and 6 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 277326-12:
(8*2)+(7*7)+(6*7)+(5*3)+(4*2)+(3*6)+(2*1)+(1*2)=152
152 % 10 = 2
So 277326-12-2 is a valid CAS Registry Number.

277326-12-2SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 9-chloro-7-(2,2-dichloroacetyl)-8-hydroxy-10,10-dimethylpyrido[1,2-a]indol-6-one

1.2 Other means of identification

Product number -
Other names 9-chloro-7-(2,2-dichloroacetyl)-6-hydroxy-10,10-dimethylpyrido[1,2-a]indol-8-one

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:277326-12-2 SDS

277326-12-2Downstream Products

277326-12-2Relevant articles and documents

Synthesis and reactions of 11H-benzo[b]pyrano[3,2-f]indolizines and pyrrolo[3,2,1-ij]pyrano[3,2-c]quinolines [1]

Kappe, Thomas,Roschger, Peter,Schuiki, Birgit,Stadlbauer, Wolfgang

, p. 297 - 302 (2007/10/03)

2-Methyl-3H-indoles 1 cyclize with two equivalents of ethyl malonate 2 to form 4-hydroxy-11H-benzo[b]pyrano[3,2-f]indolizin-2,5-diones 3, whereas 2-methyl-2,3-dihydro-1H-indoles 9 give under similar conditions regioisomer 8-hydroxy-5-methyl-4,5-dihydro-pyrrolo[3,2,1-ij]pyrano[3,2-c] quinolin-7,10-diones 10. The pyrone rings of 3 and 9 can be cleaved either by alkaline hydrolysis to give 7-acetyl-8-hydroxy-10H-pyrido[1,2-a]indol-6-ones 4 or 5-acetyl-6-hydroxy-2-methyl-1,2-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-4-ones 11, respectively. Chlorination of 3 and 9 with sulfurylchloride gives under subsequent ring opening 7-dichloroacetyl-8-hydroxy-10H-pyrido[1,2-a]indol-6-ones 5 or 5-dichloracetyl-6-hydroxy-2-methyl-1,2-dihydro-4H-pyrrolo [3,2,1-ij]quinolin-4-ones 12. The dichloroacetyl group of 5 can be reduced with zinc to 7-acetyl-8-hydroxy-10H-pyrido[1,2-a]indol-6-ones 7. Treatment of the acetyl compounds 4, 7 and 11 with 90% sulfuric acid cleaves the acetyl group and yields 8-hydroxy-10H-pyrido[1,2-a]indol-6-ones 6 and 8, and 6-hydroxy-2-methyl-1,2-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-4-ones 13. Reaction of dichloroacetyl compounds 12 with sodium azide yields 6-hydroxy-2-methyl-5-(1H-tetrazol-5-ylcarbonyl)- 1,2-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-4-ones 14 via intermediate geminal diazides.

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