Regenerative γ-Lactone Annulations: A Modular, Iterative Approach to Oligo-tetrahydrofuran Molecular Stairs and Related Frameworks.
Rashid, Showkat; Bhat, Bilal A.; Mehta, Goverdhan; Organic letters 17 (2015) 3604–3607; doi:10.1021/acs.orglett.5b01707

data_1555109
_publ_section_title
;
 Regenerative \g-Lactone Annulations: A Modular, Iterative Approach to
 Oligo-tetrahydrofuran Molecular Stairs and Related Frameworks.
;
_journal_issue                   14
_journal_name_full               'Organic letters'
_journal_page_first              3604
_journal_page_last               3607
_journal_paper_doi               10.1021/acs.orglett.5b01707
_journal_volume                  17
_journal_year                    2015
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(1S,2R,6R,8R)-5,7,9-trioxatricyclo[6.3.0.0^2,6^]undecan-4-one
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CrysAlisPro, Agilent Technologies,
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
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_computing_molecular_graphics
'PLATON (Spek, 2003) and CAMERON (Watkin et al., 1993)'
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  1 omega  -28.00   37.00   1.0000   35.0000
omega____ theta____ kappa____ phi______ frames
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  2 omega  -11.00   92.00   1.0000   35.0000
omega____ theta____ kappa____ phi______ frames
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  3 omega  -23.00   17.00   1.0000   35.0000
omega____ theta____ kappa____ phi______ frames
    -      -19.1691  -99.0000  -90.0000 40

;
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini'
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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)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
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_exptl_crystal_colour            colorless
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_exptl_crystal_density_meas_temp 291(2)
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       block
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_refine_diff_density_max         0.212
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_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0838P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
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_cod_depositor_comments
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The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
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