Highly Diastereoselective Crown Ether Catalyzed Arylogous Michael Reaction of 3-Aryl Phthalides.
Sicignano, Marina; Dentoni Litta, Antonella; Schettini, Rosaria; De Riccardis, Francesco; Pierri, Giovanni; Tedesco, Consiglia; Izzo, Irene; Della Sala, Giorgio; Organic letters 19 (2017) 4383–4386; doi:10.1021/acs.orglett.7b02113

data_1547072
_publ_section_title
;
 Highly Diastereoselective Crown Ether Catalyzed Arylogous Michael
 Reaction of 3-Aryl Phthalides.
;
_journal_issue                   16
_journal_name_full               'Organic letters'
_journal_page_first              4383
_journal_page_last               4386
_journal_paper_doi               10.1021/acs.orglett.7b02113
_journal_volume                  19
_journal_year                    2017
_chemical_formula_moiety         'C29 H22 O3'
_chemical_formula_sum            'C29 H22 O3'
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_space_group_name_Hall           '-P 1'
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Olex2 1.2
(compiled 2017.03.28 svn.r3405 for OlexSys, GUI svn.r5337)
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'SIR2014 (Burla et al., 2015)'
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_refine_ls_structure_factor_coef Fsqd
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'w=1/[\s^2^(Fo^2^)+(0.0721P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_cod_data_source_block           compound3aa
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_database_code               1547072
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_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2.a Ternary CH refined with riding coordinates:
 C15(H15)
2.b Secondary CH2 refined with riding coordinates:
 C22(H22A,H22B)
2.c Aromatic/amide H refined with riding coordinates:
 C2(H2), C21(H21), C25(H25), C28(H28), C10(H10), C18(H18), C29(H29), C17(H17),
 C3(H3), C27(H27), C14(H14), C5(H5), C4(H4), C19(H19), C20(H20), C26(H26),
 C13(H13), C12(H12), C11(H11)
;
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_olex2_submission_special_instructions 'No special instructions were received'