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28115-67-5

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28115-67-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28115-67-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,1,1 and 5 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 28115-67:
(7*2)+(6*8)+(5*1)+(4*1)+(3*5)+(2*6)+(1*7)=105
105 % 10 = 5
So 28115-67-5 is a valid CAS Registry Number.

28115-67-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name (+)-piperitol

1.2 Other means of identification

Product number -
Other names pluviatilol

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:28115-67-5 SDS

28115-67-5Relevant articles and documents

A Versatile Stereoselective Synthesis of endo,exo-Furofuranones: Application to the Enantioselective Synthesis of Furofuran Lignans

Swain, Nigel A.,Brown, Richard C. D.,Bruton, Gordon

, p. 122 - 129 (2007/10/03)

A new stereoselective route to endo,exo-2,6-diarylfurofuranones has been developed using Mn(III)-mediated intramolecular cyclopropanation and C-H insertion reactions as key C-C bond-forming steps. Mn(III)-mediated oxidative cyclization of acetoacetate derivative 11 afforded 1-acetyl-4-aryl-3-oxabicyclo[3.1.0]hexan-2-one (12) with excellent diastereocontrol (d.r. 22:1). Subsequent Lewis acid-catalyzed opening of the activated cyclopropane ring present in 12 with benzylic alcohols then gave α-acetyl-γ-butyrolactones 16 and 18-20, which reacted efficiently with in situ-generated TfN3 to secure the key α-diazo-γ -butyrolactones 22-25. Highly stereoselective rhodium-catalyzed C-H insertion reactions of diazolactones 22-25 completed the synthesis of endo,exo-2,6-diarylfurofuranones 26-29 in overall yields ranging from 41 to 48% from 1-phenylallyl alcohol (±)-10. The approach developed for the furofuranones 26-29 was then applied to the asymmetric syntheses of four furofuran lignans, (+)-xanthoxylol (1), (+)-methylxanthoxylol (2), (+)-epipinoresinol (3), and (+)-epieudesmin (4), starting from enantiomerically enriched 1-arylallyl alcohol (S)-31.

Synthetic methods for (Exo,Exo)- and (Exo-,Endo)-2,6-diarylbicyclo[3:3:0]octane lignans: Syntheses of (±)-aptosimon, (±)-styraxin, (±)-asarinin, and (±)-pluviatilol

Stevens,Whiting

, p. 4629 - 4632 (2007/10/02)

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