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230. Garanti L, Vigevani A, Zecchi G (1976) Intramolecular carbene-Type 1,1-cycloaddition by
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benzodiazepines and Cyclopropa[c]cinnolines. J Org Chem 46:1402–1409
236. Garanti L, Zecchi G (1980) New aspects in the base-promoted cyclisation of ovinylbenzohydrazonyl chlorides. J Chem Soc Perkin Trans 1:116
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of the base-promoted cyclisation of o-vinylphenylhydrazonyl chlorides under phase-transfer
conditions. J Chem Soc, Perkin Trans 1:2041–2044
238. Bruché L, Garanti L, Zecchi G (1983) Competition between ethylenic and nitrile groups in
the intramolecular capture of nitrile imines. J Chem Soc, Perkin Trans 1:539–541
239. Wentrup C, Damerius A, Reichen W (1978) Intramolecular cyclization of nitrile imines.
synthesis of indazoles, fluorenes, and aza analogs. J Org Chem 43:2037–2041
240. Wentrup C, Benedikt J (1980) Nitrile imine and carbene rearrangements. From furfural
to benzofulvene-8-carboxaldehyde, 8-benzofulvenylcarbene, and 1-vinylideneindene. J Org
Chem 45:1407–1409
241. Lucero PL, Pelaez WJ, Riedl Z, Hajos G, Moyano EL, Yranzo GI (2012) Flash vacuum
pyrolysis of azolylacroleins and azolylbutadienes. Tetrahedron 68:1299–1305
242. Csongár C, Leihkauf P, Lohse V, Tomaschewski G (1984) Photochemistry of Aryl-Substituted
2H-tetrazoles I. Direct Spectroscopic detection of diarylnitrilimines. Zeitschrift für Chemie
24:96–97
243. Maier G, Eckwert J, Bothur A, Reisenauer HP, Schmidt C (1996) Photochemical
fragmentation of unsubstituted tetrazole, 1,2,3-Triazole, and 1,2,4-Triazole: First Matrixspectroscopic identification of nitrilimine HCNNH. Liebigs Ann 1041–1053
244. Bégué D, Qiao GG, Wentrup C (2012) Nitrile imines: matrix isolation, IR spectra, structures,
and rearrangement to carbodiimides. J Am Chem Soc 134:5339–5350
245. Nunes CM, Araujo-Andrade C, Fausto R, Reva I (2014) Generation and characterization of
a 4π-electron three-membered ring 1H-diazirine: an elusive intermediate in nitrile iminecarbodiimide isomerization. J Org Chem 79:3641–3646
246. Ismael A, Fausto R, Cristiano MLS (2016) Photochemistry of 1- and 2-Methyl-5aminotetrazoles: structural effects on reaction pathways. J Org Chem 81:11656–11663
97
229. Huisgen R, Sustmann R, Bunge K (1972) 1.3-dipolar cycloadditions, 65. The question of a
primary 1.1-Addition for the cycloadditions of nitrilium and diazonium betaines. Chem Ber
105:1324–1339
230. Garanti L, Vigevani A, Zecchi G (1976) Intramolecular carbene-Type 1,1-cycloaddition by
Nitrile Imines. Tetrahedron Lett 17:1527–1528
231. Garanti L, Zecchi G (1977) Cyclisation of nitrile imides with alkenyl substituents: routes to
1,2-Benzodiazepines and Cyclopropa[c]cinnolines. J Chem Soc Perkin Trans 1:2092
232. Garanti L, Zecchi G (1979) General synthesis of 1a,7b-dihydro-1H-cyclopropa[c]cinnolines
with electron-withdrawing substituents in the 1a-Position. J Heterocycl Chem 16:377–379
233. Padwa A, Nahm S (1979) Stereochemical aspects of the intramolecular 1,1-cycloaddition
reaction of nitrilimines. J Org Chem 44:4746–4748
234. Padwa A, Nahm S, Sato E (1978) Photochemical transformations of small ring heterocyclic
compounds. 9. Intramolecular 1,3-dipolar cycloaddition reactions of alkenyl-substituted
nitrile imines. J Org Chem 43:1664–1671
235. Padwa A, Nahm S (1981) Intramolecular 1,1-cycloaddition of nitrilimines as a route to
benzodiazepines and Cyclopropa[c]cinnolines. J Org Chem 46:1402–1409
236. Garanti L, Zecchi G (1980) New aspects in the base-promoted cyclisation of ovinylbenzohydrazonyl chlorides. J Chem Soc Perkin Trans 1:116
237. Bruché L, Del Buttero P, Garanti L, Zecchi G (1982) Stereochemical and mechanistic aspects
of the base-promoted cyclisation of o-vinylphenylhydrazonyl chlorides under phase-transfer
conditions. J Chem Soc, Perkin Trans 1:2041–2044
238. Bruché L, Garanti L, Zecchi G (1983) Competition between ethylenic and nitrile groups in
the intramolecular capture of nitrile imines. J Chem Soc, Perkin Trans 1:539–541
239. Wentrup C, Damerius A, Reichen W (1978) Intramolecular cyclization of nitrile imines.
synthesis of indazoles, fluorenes, and aza analogs. J Org Chem 43:2037–2041
240. Wentrup C, Benedikt J (1980) Nitrile imine and carbene rearrangements. From furfural
to benzofulvene-8-carboxaldehyde, 8-benzofulvenylcarbene, and 1-vinylideneindene. J Org
Chem 45:1407–1409
241. Lucero PL, Pelaez WJ, Riedl Z, Hajos G, Moyano EL, Yranzo GI (2012) Flash vacuum
pyrolysis of azolylacroleins and azolylbutadienes. Tetrahedron 68:1299–1305
242. Csongár C, Leihkauf P, Lohse V, Tomaschewski G (1984) Photochemistry of Aryl-Substituted
2H-tetrazoles I. Direct Spectroscopic detection of diarylnitrilimines. Zeitschrift für Chemie
24:96–97
243. Maier G, Eckwert J, Bothur A, Reisenauer HP, Schmidt C (1996) Photochemical
fragmentation of unsubstituted tetrazole, 1,2,3-Triazole, and 1,2,4-Triazole: First Matrixspectroscopic identification of nitrilimine HCNNH. Liebigs Ann 1041–1053
244. Bégué D, Qiao GG, Wentrup C (2012) Nitrile imines: matrix isolation, IR spectra, structures,
and rearrangement to carbodiimides. J Am Chem Soc 134:5339–5350
245. Nunes CM, Araujo-Andrade C, Fausto R, Reva I (2014) Generation and characterization of
a 4π-electron three-membered ring 1H-diazirine: an elusive intermediate in nitrile iminecarbodiimide isomerization. J Org Chem 79:3641–3646
246. Ismael A, Fausto R, Cristiano MLS (2016) Photochemistry of 1- and 2-Methyl-5aminotetrazoles: structural effects on reaction pathways. J Org Chem 81:11656–11663