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1
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0000871832
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ed. by B. M. Trost and I. Fleming, Pergamon, Oxford
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"Comprehensive Organic Synthesis," ed. by B. M. Trost and I. Fleming, Pergamon, Oxford (1991), Vol. 6, pp 949-1070.
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(1991)
Comprehensive Organic Synthesis
, vol.6
, pp. 949-1070
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4
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0010597780
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K. Ogura, N. Yahata, J. Watanabe, K. Takahashi, and H. Iida, Bull. Chem. Soc. Jpn., 56, 3543 (1983).
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(1983)
Bull. Chem. Soc. Jpn.
, vol.56
, pp. 3543
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Ogura, K.1
Yahata, N.2
Watanabe, J.3
Takahashi, K.4
Iida, H.5
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5
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0010598208
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K. Ogura, J. Watanabe, K. Takahashi, and H. Iida, J. Org. Chem., 47, 5404 (1982).
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(1982)
J. Org. Chem.
, vol.47
, pp. 5404
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Ogura, K.1
Watanabe, J.2
Takahashi, K.3
Iida, H.4
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6
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0010529603
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note
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6 for its (E) and (Z)-isomers were 7.66 and 7.27 ppm, respectively. Since some deshielding (0.6 ppm) can be elucidated by hydrogen bonding of the olefinic proton with an oxygen atom of the sulfonyl group, 2a was identified as the (E)-isomer. An olefinic proton of the other isomer came out at δ = 7.18 ppm.
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7
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0003520774
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John Wiley & Sons, Inc., New York
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R. M. Silverstein, G. C. Bassler, and T. C. Morrill, "Spectrometric Identification of Organic Compounds," 5th ed., John Wiley & Sons, Inc., New York (1991) p 215.
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(1991)
"Spectrometric Identification of Organic Compounds," 5th ed.
, pp. 215
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Silverstein, R.M.1
Bassler, G.C.2
Morrill, T.C.3
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9
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0010529604
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note
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Mg turnings for Grignard reaction was used without any pre-treatment.
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10
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0010598486
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note
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The reaction of 2a in DMSO was found to give the optimum yield (68%) among those in other aprotic polar solvents such as DMF (45%), sulforane (40%), DMAC (23%), THF (20%), and acetonitrile (14%).
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11
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0010598487
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note
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Although the detailed role of TMSCl is still unclear, two main roles may be postulated, i.e., activation of the surface of Mg metal and stabilization of anionic intermediates generated by electron transfer from Mg metal.
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12
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0010563631
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note
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Mg metal is thought to be able to reduce readily compounds possessing less negative reduction potential than -1.80 V vs Ag/AgCl under these conditions. See Ref. 11.
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13
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0036003244
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M. Kyoda, T. Yokoyama, T. Kuwahara, H. Maekawa, and I. Nishiguchi, Chem. Lett., 2002, 228.
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Chem. Lett.
, vol.2002
, pp. 228
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Kyoda, M.1
Yokoyama, T.2
Kuwahara, T.3
Maekawa, H.4
Nishiguchi, I.5
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14
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0001494671
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T. Ohno, Y. Ishino, Y. Tsumagari, and I. Nishiguchi, J. Org. Chem., 60, 458 (1995).
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(1995)
J. Org. Chem.
, vol.60
, pp. 458
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Ohno, T.1
Ishino, Y.2
Tsumagari, Y.3
Nishiguchi, I.4
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15
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0000061272
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T. Ohno, M. Sakai, Y. Ishino, T. Shibata, H. Maekawa, and I. Nishiguchi, Org. Lett., 3, 3439 (2001).
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(2001)
Org. Lett.
, vol.3
, pp. 3439
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Ohno, T.1
Sakai, M.2
Ishino, Y.3
Shibata, T.4
Maekawa, H.5
Nishiguchi, I.6
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19
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0010529605
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note
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5MgBr led to stereospecific reductive desulfination to give (Z)-β-(methylthio)styrene in a 79% yield.
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20
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0000112839
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K. Ogura, K. Arai, and G. Tsuchihashi, Bull. Chem. Soc. Jpn., 55, 3669 (1982).
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(1982)
Bull. Chem. Soc. Jpn.
, vol.55
, pp. 3669
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Ogura, K.1
Arai, K.2
Tsuchihashi, G.3
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21
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0010561964
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note
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2O after the reaction in DMSO resulted in no formation of 3a-D to give 3a-H as the sole product.
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