Novel rearrangement of pyrazole N-imines with acetic anhydride.
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چکیده
منابع مشابه
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A series of di-, tri-, and tetra-substituted N-tosylaziridines [N-(toluene-p-sulfonyl)aziridines] 1, prepared by aziridination of the corresponding alkenes with N-[(tolyl-p-sulfonyl)imino]phenyliodinane (TsN = IPh), was found to undergo a BF3-catalyzed rearrangement (aza-pinacol rearrangement) under mild conditions to give the corresponding N-tosylimines 2 generally in satisfactory yields.
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متن کاملReactions of dimethoxycarbene with N-tosylated imines
The reactions of dimethoxycarbene (DMC; 2), which was generated in situ by thermal decomposition of 2,5-dihydro-2,2-dimethoxy-5,5-dimethyl-1,3,4-oxadiazole (1), with N-tosylated imines of xanthone and 2,3 : 6,7 dibenzosuberenone, 3a and 3d, respectively, led to different adducts with rearranged skeletons. In the case of 3a, the 1 :1 adduct 5 as well as the 2 : 1 adduct 6 were obtained (Scheme 2...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1976
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.24.2267