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[2 + 3] Cycloaddition reactions of dimethylamino-bis(trifluoromethyl)borane, (CF3)2BNMe2, with nitrile oxides, nitrones and Me2CSO2. Crystal and molecular structure of (CF3)2B-NMe2-tBuCNO and (CF3)2BNMe2CMe2(O)O

✍ Scribed by David J. Brauer; Hans Bürger; Gottfried Pawelke; Jürgen Rothe

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
814 KB
Volume
522
Category
Article
ISSN
0022-328X

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N-sulfinylacylamides R-C(ϭO)-NϭSϭO react with (CF 3 ) 2 BNMe 2 (1) to form, by [2ϩ4] cycloaddition, six-membered rings cyclo-(CF 3 ) 2 B-NMe 2 -S(ϭO)-NϭC(R)-O for R ϭ Me (2), t-Bu (3), C 6 H 5 (4), and p-CH 3 C 6 H 4 (5) while N-sulfinylcarbamic acid esters R-O-C(ϭO)-NϭSϭO react with 1 to yield mixt