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A convenient synthesis of 1,4-dihydro-2,3-benzoxathiin 3-oxide, a useful precursor of o-quinodimethane

✍ Scribed by Hoey, Michael D.; Dittmer, Donald C.

Book ID
120818897
Publisher
American Chemical Society
Year
1991
Tongue
English
Weight
301 KB
Volume
56
Category
Article
ISSN
0022-3263

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## Abstract A series of eleven 2‐ and 6‐substituted (__R,S__)‐9‐(2,3‐dihydro‐1,4‐benzoxathiin‐3‐ylmethyl)‐9__H__‐purine derivatives was obtained by applying a standard Mitsunobu protocol that led to a six‐membered ring contraction from (__R,S__)‐3,4‐dihydro‐2__H__‐1,5‐benzoxathiepin‐3‐ol via an epi