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Azaenolates of 2-Chloromethyl-4-methoxymethyl-5-phenyl-2-oxazoline − A Highly Diastereo- and Enantioselective Synthesis of Oxazolinyloxiranes

✍ Scribed by Vito Capriati; Saverio Florio; Renzo Luisi


Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
306 KB
Volume
2001
Category
Article
ISSN
1434-193X

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✦ Synopsis


The oxazoline-derived titanium azaenolate 6 couples highly stereoselectively with aldehydes affording highly optically pure oxazolinyloxiranes 7. The epoxide 7a has been deblocked to form the optically pure formyl oxirane 9. In con- [a


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A Highly Regioselective Preparation of 4
✍ George T. Lee; Xinglong Jiang; T. R. Vedananda; Kapa Prasad; Oljan Repič 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 130 KB

## Abstract A facile highly regioselective process is described for the formation of 4‐chloromethyl‐1,3‐oxazoles from 1,3‐oxazole __N__‐oxide/HCl salts. An explanation is presented for the high regioselectivity in deoxygenation‐chlorination using POCl~3~ with HCl salts compared to the corresponding