154010-96-5Relevant articles and documents
Ring-Expansion Reactions of Epoxy Amides and Enamides: Functionalized Azetidines, Dihydrofurans, Diazocanes, or Dioxa-3-azabicyclonon-4-enes?
Suraj,Swamy, K. C. Kumara
, (2022/05/27)
Functionalized azetidines, 2,3-dihydrofurans, or the unorthodox dioxa-3-azabicyclonone-4-ene motifs are the products from transition metal-free reaction between N-oxiranylmethyl benzenesulfonamide and β-chloro-cinnamaldehyde, depending on whether one uses
Regioselective Synthesis of 3-Hydroxy-4,5-alkyl-Substituted Pyridines Using 1,3-Enynes as Alkynes Surrogates
Barday, Manuel,Ho, Kelvin Y. T.,Halsall, Christopher T.,A?ssa, Christophe
supporting information, p. 1756 - 1759 (2016/05/19)
The poor regioselectivity of the [4 + 2] cycloaddition of 3-azetidinones with internal alkynes bearing two alkyl substituents via nickel-catalyzed carbon-carbon activation is addressed using 1,3-enynes as substrates. The judicious choice of substitution on the enyne enables complementary access to each regioisomer of 3-hydroxy-4,5-alkyl-substituted pyridines, which are important building blocks in medicinal chemistry endeavors.
1,5-rhodium shift in rearrangement of N -arenesulfonylazetidin-3-ols into benzosultams
Ishida, Naoki,Shimamoto, Yasuhiro,Yano, Takaaki,Murakami, Masahiro
supporting information, p. 19103 - 19106 (2014/01/17)
Benzosultams are synthesized in an enantiopure form starting from α-amino acids through a rhodium-catalyzed rearrangement reaction of N-arenesulfonylazetidin-3-ols. Mechanistically, this reaction involves C-C bond cleavage by β-carbon elimination and C-H bond cleavage by a 1,5-rhodium shift.
Improved synthesis of an energetic material, 1,3,3-trinitroazetidine (TNAZ) exploiting 2-iodoxy benzoic acid (IBX) as an oxidising agent
Singh, Alok,Sikder, Nirmala,Sikder, Arun K.
, p. 2560 - 2563 (2007/10/03)
Tetrahydropyranyl protected 1,3-dihalo-2-propanol reacts with p-toluene sulfonamide in the presence of K2CO3 to give corresponding N-p-tosyl-3-azetidinol. Deprotection and oxidation with iodoxy benzoic acid followed by oximation of N-p-tosyl-3-azetidinone readily affords the corresponding azetidine oxime in almost quantitative yield. The subsequent oxidative nitrolysis of oxime gives 1,3,3-trinitroazetidine (TNAZ) through a new sequence of reactions with excellent purity (> 99%) and moderate yield (40%).
Synthesis of 1,3,3-Trinitroazetidine via the Oxidative Nitrolysis of N-p-Tosyl-3-azetidinone Oxime
Axenrod, T.,Watnick, C.,Yazdekhasti, H.,Dave, P. R.
, p. 1959 - 1964 (2007/10/02)
The tert-butyldimethylsilyl ether of 1,3-dibromo-2-propanol reacted with p-toluenesulfonamide in the presence of K2CO3 to give the corresponding N-p-tosyl-3-azetidinol.The same azetidinol was obtained when the similarly silyl-protected 3-(p-toluenesulfonamido)propan-2-ol 1(p-toluenesulfonate) was treated with LiH.Desilylation and oxidation of the N-p-tosyl-3-azetidinol followed by oximation readily afforded N-p-tosyl-3-azetidinone oxime.Oxidative nitrolysis of the latter intermediate delivered 1,3,3-trinitroazetidine through a new sequence of reactions.
Novel Syntheses of 1,3,3-Trinitroazetidine
Katritzky, Alan R.,Cundy, Darren J.,Chen, Jie
, p. 271 - 276 (2007/10/02)
Alternative methods for the synthesis of 1,3,3-trinitroazetidine (TNAZ) from epichlorohydrin, and benzhydrylamine have been developed.These approaches employ N-sulfonyl-3-(hydroxyimino)azetidines as penultimate intermediates and represent an improvement over previously published methods which require either diazo containing intermediates or involve low yielding procedures.Parallel methods employing N-benzhydryl- and N-benzyl-3-(hydroxyimino)azetidine were also investigated as alternate routes to TNAZ
Synthesis of 1,3,3-Trinitroazetidine
Axenrod, Theodore,Watnick, Clara,Yazdekhasti, Hamid,Dave, Paritosh R.
, p. 6677 - 6680 (2007/10/02)
The t-butyldimethylsilyl ether of 3-(p-toluenesulfonamido)propane-2-ol-1-(p-toluenesulfonate) on treatment with LiH undergoes ring closure to the corresponding azetidine which is readily converted to N-tosyl-3-azetidinone oxime.By oxidative nitrolysis the latter affords 1,3,3-trinitroazetidine.