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80. Zhang Y, Ma X, Chen Y, Chen X, Guo L, Cao W, Chen J, Wong MS (2013) Synthesis
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63. Agócs A, Bényei A, Somogyi L, Herczegh P (1998) Cycloaddition reactions of carbohydrate
derivatives. Part 7: [3 + 2] Cycloadditions of chiral nitrilimines. Tetrahedron Asymmetry
9:3359–3363
64. Del Buttero P, Molteni G, Pilati T (2003) Nitrilimine cycloaddition to 4-(pyrazol5-yl)carbonyl-2-azetidinone and 4-(pyrazol-4-yl)carbonyl-2-azetidinone. Tetrahedron Lett
44:1425–1427
65. De Benassuti L, Garanti L, Molteni G (2004) Oxygenated monoterpenes as dipolarophiles
for nitrilimine cycloadditions. Tetrahedron 60:4627–4633
66. Broggini G, Garanti L, Molteni G, Zecchi G (1999) The first case of asymmetric induction
in intramolecular nitrile imine cycloadditions: synthesis of enantiopure 3-substituted 6-oxo2,3,3a,5-tetrahydro-4-carbomethoxy-furo[3,4-c]pyrazoles. Tetrahedron Asymmetry 10:487–
492
67. Broggini G, Garanti L, Molteni G, Pilati T, Ponti A, Zecchi G (1999) Stereoselective
Intramolecular cycloadditions of homochiral nitrile imines: synthesis of enantiomerically
pure 3,3a-dihydro-pyrazolo[1,5-a][1,4]benzodiazepine-6(4H)-ones. Tetrahedron Asymmetry
10:2203–2212
68. Broggini G, Casalone G, Garanti L, Molteni G, Pilati T, Zecchi G (1999)
Asymmetric induction by the (S)-1-phenylethyl group in intramolecular nitrile imine
cycloadditions giving enantiopure 3,3a-dihydro-pyrazolo[1,5-a][1,4]benzodiazepine-4(6H)ones. Tetrahedron Asymmetry 10:4447–4454
69. Broggini G, Molteni G, Pilati T (2000) Diastereoselective synthesis of Bis(3,5)pyrazolophanes
by sequential inter- and intramolecular cycloadditions of homochiral nitrilimines. Tetrahedron
Asymmetry 11:1975–1983
70. Molteni G, Pilati T (1999) The First Example of a (1R,2S,5R)-(−)-Menthyl chiral
auxiliary in intramolecular nitrilimine cycloadditions: synthesis of enantiopure pyrazolo[1,5a][4,1]benzoxazepines and Pyrazolo[1,5-a][4,1]benzodiazepines. Tetrahedron Asymmetry
10:3873–3876
71. Sibi MP, Stanley LM, Jasperse CP (2005) An Entry to a chiral dihydropyrazole scaffold:
enantioselective [3 + 2] cycloaddition of nitrile imines. J Am Chem Soc 127:8276
72. Sibi MP, Stanley LM, Soeta T (2006) Enantioselective 1,3-dipolar cycloaddition of nitrile
imines to α-substituted and α, β-disubstituted α, β-unsaturated carbonyl substrates: a method
for synthesizing dihydropyrazoles bearing a chiral quaternary center. Adv Synth Catal
348:2371–2375
73. Wang G, Liu X, Huang T, Kuang Y, Lin L, Feng X (2013) Asymmetric catalytic 1,3-dipolar
cycloaddition reaction of nitrile imines for the synthesis of chiral spiro-pyrazoline-oxindoles.
Org Lett 15:76–79
74. Gerten AL, Slade MC, Pugh KM, Stanley LM (2013) Catalytic, enantioselective 1,3-dipolar
cycloadditions of nitrile imines with methyleneindolinones. Org Biomol Chem 11:7834
75. Tanaka K, Masuda H, Mitsuhashi K (1986) Exo/endo stereoselectivity in 1,3-dipolar
cycloaddition of trifluoroacetonitrile oxide and -nitrilimine with bicyclic olefins. Bull Chem
Soc Jpn 59:3901–3904
76. Brahma K, Sasmal AK, Chowdhury C (2011) An efficient strategy for the general
synthesis of 3-Aryl substituted Pyrazolo[5,1-c][1,4]benzoxazines and Pyrazolo[1,5a][1,4]benzodiazepin-6(4H)-ones. Org Biomol Chem 9:8422
77. Remy R, Bochet CG (2018) Application of photoclick chemistry for the synthesis of Pyrazoles
via 1,3-Dipolar cycloaddition between alkynes and nitrilimines generated in situ. Eur J Org
Chem 2018:316–328
78. Voronin VV, Ledovskaya MS, Gordeev EG, Rodygin KS, Ananikov VP, Zelinsky ND (2018)
[3 + 2]-cycloaddition of in situ generated nitrile imines and acetylene for assembling of
1,3-disubstituted pyrazoles with quantitative deuterium labeling. J Org Chem 83:3819–3828
79. Spiteri C, Keeling S, Moses JE (2010) New synthesis of 1-Substituted-1H-indazoles via 1,3Dipolar cycloaddition of in situ generated nitrile imines and benzyne. Org Lett 12:3368–3371
80. Zhang Y, Ma X, Chen Y, Chen X, Guo L, Cao W, Chen J, Wong MS (2013) Synthesis
and characterization of oxadisilole-fused 1H-Benzo[f ]indazoles and 1H-Naphtho[2,3f ]indazoles. Eur J Org Chem 2013:3005–3012