Synthesis of Spiro[indazole-3,3'-indolin]-2'-ones via [3 + 2] Dipolar Cycloaddition of Arynes with 3-Diazoindolin-2-ones and Indazolo[2,3-c]quinazolin-6(5H)-ones by Subsequent Thermal Isomerization.
Cheng, Bin; Zu, Bing; Bao, Bian; Li, Yun; Wang, Renqi; Zhai, Hongbin; The Journal of organic chemistry 82 (2017) 8228–8233; doi:10.1021/acs.joc.7b00990

data_4032647
_publ_section_title
;
 Synthesis of Spiro[indazole-3,3'-indolin]-2'-ones via [3 + 2] Dipolar
 Cycloaddition of Arynes with 3-Diazoindolin-2-ones and
 Indazolo[2,3-c]quinazolin-6(5H)-ones by Subsequent Thermal Isomerization.
;
_journal_issue                   15
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              8228
_journal_page_last               8233
_journal_paper_doi               10.1021/acs.joc.7b00990
_journal_volume                  82
_journal_year                    2017
_chemical_formula_moiety         'C21 H15 N3 O'
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_space_group_name_H-M_alt        'I 1 2/a 1'
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_atom_sites_solution_hydrogens   geom
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Olex2 1.2
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CrysAlisPro, Agilent Technologies,
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  1 omega   41.00   83.00   1.0500    4.0000
omega____ theta____ kappa____ phi______ frames
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  2 omega   -8.00   92.80   1.0500    4.0000
omega____ theta____ kappa____ phi______ frames
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omega____ theta____ kappa____ phi______ frames
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omega____ theta____ kappa____ phi______ frames
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CrysAlisPro, Agilent Technologies,
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Empirical absorption correction using spherical harmonics,
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'Adding full bibliography for 4032646--4032647.cif.'
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1. Fixed Uiso
 At 1.2 times of:
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2.a Secondary CH2 refined with riding coordinates:
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2.b Aromatic/amide H refined with riding coordinates:
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