-
2
-
-
0000275815
-
-
Stork, G.; Maldonado, L. J. Am. Chem. Soc. 1971, 93, 5286. Evans, D. A.; Hoffman, J. M.; Truesdale, L. K. J. Am. Chem. Soc. 1973, 95, 5822. Hiyama, T.; Oishi, H.; Saimoto, H. Tetrahedron Lett. 1985, 26, 2459. Also see ref 1.
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J. Am. Chem. Soc.
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Stork, G.1
Maldonado, L.2
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3
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0000812802
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Stork, G.; Maldonado, L. J. Am. Chem. Soc. 1971, 93, 5286. Evans, D. A.; Hoffman, J. M.; Truesdale, L. K. J. Am. Chem. Soc. 1973, 95, 5822. Hiyama, T.; Oishi, H.; Saimoto, H. Tetrahedron Lett. 1985, 26, 2459. Also see ref 1.
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J. Am. Chem. Soc.
, vol.95
, pp. 5822
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Evans, D.A.1
Hoffman, J.M.2
Truesdale, L.K.3
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4
-
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0001530076
-
-
Also see ref 1
-
Stork, G.; Maldonado, L. J. Am. Chem. Soc. 1971, 93, 5286. Evans, D. A.; Hoffman, J. M.; Truesdale, L. K. J. Am. Chem. Soc. 1973, 95, 5822. Hiyama, T.; Oishi, H.; Saimoto, H. Tetrahedron Lett. 1985, 26, 2459. Also see ref 1.
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(1985)
Tetrahedron Lett.
, vol.26
, pp. 2459
-
-
Hiyama, T.1
Oishi, H.2
Saimoto, H.3
-
5
-
-
0344368655
-
-
On the other hand, the latter property can become an advantage of the protecting group. Very high asymmetric induction is accomplished by the Lewis acid-mediated reactions of chiral acetals: Mukaiyama, T. Angew. Chem., Int. Ed. Engl. 1977, 16, 817. Johnson, W. S.; Elliott, R.; Elliott, D. J. Am. Chem. Soc. 1983, 105, 2904. Johnson, W. S.; Edington, C.; Elliott, J. D.; Silverman, I. R. J. Am. Chem. Soc. 1984, 106, 7588. Yamamoto, Y.; Nishii, S.; Yamada, J. J. Am. Chem. Soc. 1986, 108, 7116. Also see the recent review: Comprehensive Organic Synthesis; Schreiber, S. L., Ed.; Pergamon Press: Oxford, 1991; Vol. 1, pp 325-354.
-
(1977)
Angew. Chem., Int. Ed. Engl.
, vol.16
, pp. 817
-
-
Mukaiyama, T.1
-
6
-
-
33845550948
-
-
On the other hand, the latter property can become an advantage of the protecting group. Very high asymmetric induction is accomplished by the Lewis acid-mediated reactions of chiral acetals: Mukaiyama, T. Angew. Chem., Int. Ed. Engl. 1977, 16, 817. Johnson, W. S.; Elliott, R.; Elliott, D. J. Am. Chem. Soc. 1983, 105, 2904. Johnson, W. S.; Edington, C.; Elliott, J. D.; Silverman, I. R. J. Am. Chem. Soc. 1984, 106, 7588. Yamamoto, Y.; Nishii, S.; Yamada, J. J. Am. Chem. Soc. 1986, 108, 7116. Also see the recent review: Comprehensive Organic Synthesis; Schreiber, S. L., Ed.; Pergamon Press: Oxford, 1991; Vol. 1, pp 325-354.
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(1983)
J. Am. Chem. Soc.
, vol.105
, pp. 2904
-
-
Johnson, W.S.1
Elliott, R.2
Elliott, D.3
-
7
-
-
33845470030
-
-
On the other hand, the latter property can become an advantage of the protecting group. Very high asymmetric induction is accomplished by the Lewis acid-mediated reactions of chiral acetals: Mukaiyama, T. Angew. Chem., Int. Ed. Engl. 1977, 16, 817. Johnson, W. S.; Elliott, R.; Elliott, D. J. Am. Chem. Soc. 1983, 105, 2904. Johnson, W. S.; Edington, C.; Elliott, J. D.; Silverman, I. R. J. Am. Chem. Soc. 1984, 106, 7588. Yamamoto, Y.; Nishii, S.; Yamada, J. J. Am. Chem. Soc. 1986, 108, 7116. Also see the recent review: Comprehensive Organic Synthesis; Schreiber, S. L., Ed.; Pergamon Press: Oxford, 1991; Vol. 1, pp 325-354.
-
(1984)
J. Am. Chem. Soc.
, vol.106
, pp. 7588
-
-
Johnson, W.S.1
Edington, C.2
Elliott, J.D.3
Silverman, I.R.4
-
8
-
-
33845374196
-
-
On the other hand, the latter property can become an advantage of the protecting group. Very high asymmetric induction is accomplished by the Lewis acid-mediated reactions of chiral acetals: Mukaiyama, T. Angew. Chem., Int. Ed. Engl. 1977, 16, 817. Johnson, W. S.; Elliott, R.; Elliott, D. J. Am. Chem. Soc. 1983, 105, 2904. Johnson, W. S.; Edington, C.; Elliott, J. D.; Silverman, I. R. J. Am. Chem. Soc. 1984, 106, 7588. Yamamoto, Y.; Nishii, S.; Yamada, J. J. Am. Chem. Soc. 1986, 108, 7116. Also see the recent review: Comprehensive Organic Synthesis; Schreiber, S. L., Ed.; Pergamon Press: Oxford, 1991; Vol. 1, pp 325-354.
-
(1986)
J. Am. Chem. Soc.
, vol.108
, pp. 7116
-
-
Yamamoto, Y.1
Nishii, S.2
Yamada, J.3
-
9
-
-
0000530344
-
-
Pergamon Press: Oxford
-
On the other hand, the latter property can become an advantage of the protecting group. Very high asymmetric induction is accomplished by the Lewis acid-mediated reactions of chiral acetals: Mukaiyama, T. Angew. Chem., Int. Ed. Engl. 1977, 16, 817. Johnson, W. S.; Elliott, R.; Elliott, D. J. Am. Chem. Soc. 1983, 105, 2904. Johnson, W. S.; Edington, C.; Elliott, J. D.; Silverman, I. R. J. Am. Chem. Soc. 1984, 106, 7588. Yamamoto, Y.; Nishii, S.; Yamada, J. J. Am. Chem. Soc. 1986, 108, 7116. Also see the recent review: Comprehensive Organic Synthesis; Schreiber, S. L., Ed.; Pergamon Press: Oxford, 1991; Vol. 1, pp 325-354.
-
(1991)
Comprehensive Organic Synthesis
, vol.1
, pp. 325-354
-
-
Schreiber, S.L.1
-
10
-
-
0001101889
-
-
It was reported that generation of monolithiocarborane 2 by treating o-carborane with n-BuLi was accompanied by dilithiocarborane formation due to the disproportionate reaction of 2 (see Gome, F. A.; Johnson, S. E.; Hawthorne, M. F. J. Am. Chem. Soc. 1991, 113, 5915). However, we have found that the redistribution reaction can be avoided by carrying out the lithiation of o-carborane under controlled conditions (see a representative example in text).
-
(1991)
J. Am. Chem. Soc.
, vol.113
, pp. 5915
-
-
Gome, F.A.1
Johnson, S.E.2
Hawthorne, M.F.3
-
11
-
-
1542615874
-
-
note
-
o-Carborane (closo) is converted to nido-o-carborane by treatment with bases. However, under the cleavage conditions, the closo frame-work was stable to KOH.
-
-
-
-
12
-
-
1542406657
-
-
note
-
Other attractive points of this protective group are that protected aldehydes and ketones 3 are readily crystallized and stable to air, moisture, and acids.
-
-
-
-
13
-
-
85087193857
-
-
note
-
4 (2 equiv) for 2 days gave no benzaldehyde, but 3b was recovered quantitatively.
-
-
-
-
14
-
-
85087193723
-
-
note
-
3) δ 7.87 (m, 3H), 7.78 (s, 1H), 7.54 (m, 2H), 7.45 (dd, J = 9.0, 2.0 Hz, 1H), 5.44 (d, J = 3.5 Hz, 1H), 3.84 (s, 1H), 2.72 (d, J = 3.5 Hz, 1H).
-
-
-
-
17
-
-
0005665932
-
-
Zakharkin, L. I.; Chapovskii, Y. A.; Brattsev, V. A.; Stanko, V. I. Zh. Obshch. Khim. 1966, 36, 878.
-
(1966)
Zh. Obshch. Khim.
, vol.36
, pp. 878
-
-
Zakharkin, L.I.1
Chapovskii, Y.A.2
Brattsev, V.A.3
Stanko, V.I.4
-
18
-
-
0004150764
-
-
Academic Press: New York
-
Carboranes Grimes, R. N., Ed.; Academic Press: New York, 1970; pp 82-115.
-
(1970)
Carboranes
, pp. 82-115
-
-
Grimes, R.N.1
-
19
-
-
0009032289
-
-
The bifunctional molecule 11 was synthesized via Heck reaction of p-bromobenzaldehyde and 5-hexen-2-one, which was prepared by the literature procedure: Buntin, S. A.; Heck, R. F. Org. Synth. 1993, 61, 82.
-
(1993)
Org. Synth.
, vol.61
, pp. 82
-
-
Buntin, S.A.1
Heck, R.F.2
-
20
-
-
37049085808
-
-
Nakamura, H.; Sadayori, N.; Sekido, M.; Yamamoto, Y. J. Chem. Soc., Chem. Commun. 1994, 2581.
-
(1994)
J. Chem. Soc., Chem. Commun.
, pp. 2581
-
-
Nakamura, H.1
Sadayori, N.2
Sekido, M.3
Yamamoto, Y.4
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