Reacting cyclopropenones with arynes: access to spirocyclic xanthene-cyclopropene motifs.
Wallbaum, Jan; Jones, Peter G.; Werz, Daniel B.; The Journal of organic chemistry 80 (2015) 3730–3734; doi:10.1021/acs.joc.5b00330

data_4036168
_publ_section_title
;
 Reacting cyclopropenones with arynes: access to spirocyclic
 xanthene-cyclopropene motifs.
;
_journal_issue                   7
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              3730
_journal_page_last               3734
_journal_paper_doi               10.1021/acs.joc.5b00330
_journal_volume                  80
_journal_year                    2015
_chemical_formula_sum            'C27 H18 O'
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
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_computing_data_collection
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_data_reduction
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
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_computing_molecular_graphics    'Siemens XP'
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_refine_ls_structure_factor_coef Fsqd
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'calc w=1/[\s^2^(Fo^2^)+(0.0331P)^2^+1.1047P] where P=(Fo^2^+2Fc^2^)/3'
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_cod_data_source_file            jo5b00330_si_002.cif
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_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_crystal_density_meas' value 'not measured' was
changed to '?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        3827.0(4)
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_cod_database_code               4036168