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[2 + 2 Cycloaddition reactions of dialkylaminobis(trifluoromethyl)boranes with isocyanates and isothiocyanates. Crystal structures of (CF32BNMe2CONtBu, (CF32BNMe2CSNtBu, (CF32BNPhC(NMe2)S and (CF3)2BNMeC(NEt2)OCONMe

✍ Scribed by A. Ansorge; D.J. Brauer; H. Bürger; F. Dörrenbach; T. Hagen; G. Pawelke; W. Weuter


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
977 KB
Volume
407
Category
Article
ISSN
0022-328X

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[2+4] and [2+2] Cycloaddition Reactions
✍ David J. Brauer; Hans Bürger; Gottfried Pawelke; Jürgen Rothe 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 German ⚖ 86 KB 👁 1 views

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