- Lithium Aluminum Hydride Reductions; A New Hydrolysis Method for Intractable Products
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A new hydrolysis procedure is described for lithium aluminum hydride reductions which allows for simpler technique and markedly improved yields in the synthesis of multifunctional products.The procedure is illustrated by the reduction of series of formamides and amino-esters to give various propanolamines.
- Powell, John,James, Nadine,Smith, Stuart J.
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- Cis versus Trans: The Coordination Environment about the Tin(IV) Atom in Spirocyclic Amino Alcohol Derivatives
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The syntheses of amino alcohols MeN(CH2CH2CMe2OH)2 (1), MeN(CMe2CH2OH)(CH2CMe2OH) (2), MeN(CH2CH2CH2OH)(CH2CMe2OH) (3), MeN(CH2CH2CMe2OH)(CH2CMe2OH) (4), MeN(CH2CH2CMe2OH)(CH2CH2OH) (5), and MeN(CH2CH2OH) (CH2CH2CH2OH) (6) as well as spirocyclic tin(IV) alkoxides spiro-[nBuN(CH2CMe2O)2]2Sn (7), spiro-[MeN(CH2CH2CMe2O)2]2Sn (8), spiro-[para-FC6H4N (CH2CMe2O)2]2Sn (9), spiro-[MeN(CMe2CH2O)(CH2CMe2O)]2Sn (10), spiro-[MeN(CH2CH2CH2O)(CH2CMe2O)]2Sn (11), spiro-[MeN(CH2CH2CMe2O)(CH2CMe2O)]2Sn (12), spiro-[MeN(CH2CH2CMe2O)(CH2CH2O)]2Sn (13) and spiro-[MeN(CH2CH2O)(CH2CH2CH2O)]2Sn (14) are reported. The compounds were characterized by 1H, 13C (1–14) and 119Sn (7–14) NMR and IR spectroscopy, EIMS and single-crystal XRD (2, 7–10 and 13, 14). Graph-set analyses were performed for compounds [(MeNH(CMe2CH2OH)(CH2CMe2OH)][HC(O)O] (2 a) and 2. The coordination environment about the tin(IV) centre of the spirocyclic compounds and their possible stereoisomers were analysed by DFT calculations (spiro-[MeN(CH2CMe2O)2]2Sn, 8–10 and 13).
- Glowacki, Britta,Pallach, Roman,Lutter, Michael,Roesler, Fabian,Alnasr, Hazem,Thomas, Cedreric,Schollmeyer, Dieter,Jurkschat, Klaus
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p. 19266 - 19279
(2018/12/05)
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