3,157 research outputs found

    Colección: Perfil #3

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    This board-book version of LM turns out to be quite creative. Ratoncete comes from school every afternoon and goes through the forest looking for adventures. He apparently blasts a horn into the ear of the sleeping lion. Don Leon wants to spank him as a result, but Ratoncete offers an apology, not an offer of help. Later, he happens upon the lion in his trap of ropes. 8 pages, counting both covers. 6½" x 9".Language note: SpanishNo Autho

    I-LM-1_13C_NMR_spectrum

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    13C DEPT NMR spectrum of crude product from treatment of dec-9-en-1-ylisocyanate with trifluoroacetic acid and aqueous workup.</p

    I-LM-1A_purified_infrared

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    Infrared spectrum of purified product bis(dec-9-en-1-yl)urea after treatement of intermediate dec-9-en-1-ylisocyanate with CF3COOH.    </p

    I-LM-1_intermediate_infrared

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    Infrared spectrum of crude product from treatment of dec-9-en-1ylisocyanate with trifluoroacetic acid after aqeuous workup.</p

    I-LM-1A_HRMS

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    High resolution accurate mass measurement of the purified product from treatmenrt of dec-9-en-1-ylisocyanate intermediate with trifluoroacetic acid to confirm identity.</p

    I-LM-1_crude_intermediate_mass_spec

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    Mass spectrum of crude product from treatment of dec-9-en-1-ylisocyanate (Curtius rearrangement product) with trifluoroacetic acid. After aqueous workup. Note expected m/z for molecular ion not seen.</p

    I-LM-1A-1HNMR_purified

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    1H NMR 400 MMHz of purified product bis(dec-9-en-1-yl)urea after treatment of dec-9-en-1-ylisocyanate with CF3COOH and aqueous worksup, flash column (SiO2, 25% EtOAc:PE)</p

    I-LM-1A-HMQC

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    1H-13C HMQC NMR experiment on 1,3-bis(dec-9-en-1-yl)urea</p

    I-LM-1-crude_1HNMR

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    1H NMR of crude product from Curtius rearrangement to dec-9-en-1-ylisocyanate, after treatment with trifluoroacetic acid and aqueous workup.  </p

    I-LM-1A-HMBC

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    1H-13C HMBC NMR experiment on purified 1,3-bis(dec-9-en-1-yl)urea.</p
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