CBr4 promoted intramolecular aerobic oxidative dehydrogenative arylation of aldehydes: application in the synthesis of xanthones and fluorenones.
Tang, Jing; Zhao, Shijun; Wei, Yuanyuan; Quan, Zhengjun; Huo, Congde; Organic & biomolecular chemistry 15 (2017) 1589–1592; doi:10.1039/c7ob00080d

data_7155468
_publ_section_title
;
 CBr4 promoted intramolecular aerobic oxidative dehydrogenative arylation
 of aldehydes: application in the synthesis of xanthones and fluorenones.
;
_journal_issue                   7
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              1589
_journal_page_last               1592
_journal_paper_doi               10.1039/c7ob00080d
_journal_volume                  15
_journal_year                    2017
_chemical_absolute_configuration unk
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_space_group_name_Hall           'P 2ac 2ab'
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Olex2 1.2
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2016-10-31 deposited with the CCDC.
2017-01-23 downloaded from the CCDC.
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CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
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CrysAlisPro, Agilent Technologies,
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CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
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  1 omega   -1.00   36.05   1.9500   12.5000
omega____ theta____ kappa____ phi______ frames
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  2 omega  -18.00   61.95   1.9500   12.5000
omega____ theta____ kappa____ phi______ frames
    -       23.1773  -99.0000  120.0000 41

  3 omega  -37.00   46.85   1.9500   12.5000
omega____ theta____ kappa____ phi______ frames
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  4 omega  -95.00  -56.00   1.9500   12.5000
omega____ theta____ kappa____ phi______ frames
    -      -18.9586  178.0000  -90.0000 20
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CrysAlisPro, Agilent Technologies,
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Empirical absorption correction using spherical harmonics,
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_exptl_crystal_colour            'clear light yellow'
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 Flack x determined using 275 quotients [(I+)-(I-)]/[(I+)+(I-)]
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'w=1/[\s^2^(Fo^2^)+(0.0366P)^2^] where P=(Fo^2^+2Fc^2^)/3'
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'Adding full bibliography for 7155468--7155469.cif.'
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_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C5(H5), C6(H6), C9(H9), C10(H10), C11(H11), C12(H12)
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_olex2_submission_special_instructions 'No special instructions were received'