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(4S,5S)-2-(2-bromophenyl)-4-methoxymethyl-5-phenyl-2-oxazine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77250-60-3

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77250-60-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77250-60-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,2,5 and 0 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 77250-60:
(7*7)+(6*7)+(5*2)+(4*5)+(3*0)+(2*6)+(1*0)=133
133 % 10 = 3
So 77250-60-3 is a valid CAS Registry Number.

77250-60-3Relevant academic research and scientific papers

AN ASYMMETRIC SYNTHESIS OF CHIRAL PHTHALIDES VIA CHIRAL LITHIATED OXAZOLINES

Meyers, A. I.,Hanagan, Mary Ann,Trefonas, L. M.,Baker, R. J.

, p. 1991 - 1999 (2007/10/02)

Chiral aromatic oxazolines were prepared for utilization in asymmetric C-C bonding reactions.Lithiation of aryloxazolines could not be accomplished directly but were efficiently lithiated via halogen metal exchange of the o-bromo derivative (16).The resulting lithio compound (9) reacted smoothly with carbonyls to give adducts 19 but with poor stereoselectivity.Hydrolysis gave the phthalides 4 in poor ee's (20-25percent).When the lithio-oxazolines 9 were transformed into 21, they now served as chiral electrophiles.Addition of organometallics to 21 gave, particularly with Grignard reagents, useful levels of asymmetric induction which, after hydrolysis, gave phthalides 4 in 40-80percent ee.

2-OXAZOLINES FROM AMIDES VIA IMIDATES

Meyers, A. I.,Hanagan, Mary Ann,Mazzu, Arthur L.

, p. 361 - 367 (2007/10/02)

Chiral oxazolines useful in asymmetric synthesis of o-substituted phthalides and benzoic acids are readily prepared from the benzamides via their imino ethers.

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