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19908-69-1

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19908-69-1 Usage

Definition

ChEBI: A pseudoguaianolide that is decahydroazuleno[6,5-b]furan-2(3H)-one substituted by an oxo group at position 5, methyl groups at positions 4a and 8 and a methylidene group at position 3. It has been isolated from the aerial pa ts of Inula hupehensis.

Check Digit Verification of cas no

The CAS Registry Mumber 19908-69-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,0 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19908-69:
(7*1)+(6*9)+(5*9)+(4*0)+(3*8)+(2*6)+(1*9)=151
151 % 10 = 1
So 19908-69-1 is a valid CAS Registry Number.
InChI:InChI=1/C15H20O3/c1-8-6-12-10(9(2)14(17)18-12)7-15(3)11(8)4-5-13(15)16/h8,10-12H,2,4-7H2,1,3H3/t8-,10+,11-,12+,15-/m0/s1

19908-69-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name confertin

1.2 Other means of identification

Product number -
Other names Azuleno(6,5-b)furan-2,5-dione,decahydro-4a,8-dimethyl-3-methylene-,(3aR-(3aalpha,4abeta,7aalpha,8beta,9aalpha))

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:19908-69-1 SDS

19908-69-1Downstream Products

19908-69-1Relevant articles and documents

Enantioselective Conjugate Addition Greatly Improves the Synthesis of (+)-Confertin

Quinkert, Gerhard,Mueller, Thomas,Koeniger, Andreas,Schultheis, Oliver,Sickenberger, Birgitt,Duerner, Gerd

, p. 3469 - 3472 (1992)

The five-membered ring building blocks 2+3 are enantioselectively produced by conjugate addition of a chiral ligand-modified organocuprate to 2-methylcyclopent-2-enone (1) (chemical yield: 88percent; e.e.: 88percent) and successfully converted in a multi-step sequence, after final enantioselection by recrystallization of an appropriate intermediate, into the pseudoguaianolide (+)-confertin (5).- Key Words: enantioselective conjugate addition; chiral ligand-modified organocuprates; total synthesis of (+)-confertin

Allylsilane-Based Annulations. Direct Stereoselective Syntheses of (+/-)-Graveolide and (+/-)-Aromaticin

Majetich, George,Song, Jee-Seop,Leigh, Alistair J.,Condon, Stephen M.

, p. 1030 - 1037 (2007/10/02)

An allylsilane-based annulation was used to construct a functionalized perhydroazulene.The C(1), C(5), and C(10) stereocenters, characteristic of the helenanolides, were established using a reductive alkylation strategy.Stereoselective syntheses of the pseudoguaianolides graveolide and aromaticin were achieved.

Totalsynthese des Pseudoguaianolids (+)-Confertin

Quinkert, Gerhard,Schmalz, Hans-Guenther,Walzer, Egon,Kowalczyk-Przewloka, Teresa,Duerner, Gerd,Bats, Jan W.

, p. 82 - 84 (2007/10/02)

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