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Volumn , Issue 7, 2000, Pages 959-969

'Halophilic activation' of chlorosilanes: Allylation of aldehydes catalyzed by platinum dichloride or silver triflate

Author keywords

Addition reactions; Alcohols; Aldehydes; Allylation; Catalysis; Platinum; Silicon; Silver

Indexed keywords

PLATINUM DERIVATIVE; SILANE DERIVATIVE; SILVER DERIVATIVE;

EID: 0042347222     PISSN: 00397881     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2000-6290     Document Type: Article
Times cited : (30)

References (58)
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  • 5
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    • There are, however, some exceptions to this rule. For leading references on Sakurai-type reactions using catalytic amounts of Lewis or Bronsted acids see among others: (a) Davis, A. P.; Jaspars, M. Chem. Commun. 1990, 1176.
    • (1990) Chem. Commun. , pp. 1176
    • Davis, A.P.1    Jaspars, M.2
  • 11
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    • For enantioselective Sakurai reactions using stoichiometric or catalytic amounts of chiral Lewis acids see the following for leading references: (a) Gauthier, D. R.; Carreira, E. M. Angew. Chem. Int. Ed. Engl. 1996, 35, 2363.
    • (1996) Angew. Chem. Int. Ed. Engl. , vol.35 , pp. 2363
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    • For pertinent reviews, see: (a) Sakurai, H. Synlett 1989, 1.
    • (1989) Synlett , pp. 1
    • Sakurai, H.1
  • 27
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    • "Free" silylium cations cannot be expected in condensed phase; for a review on the silylium ion problem see: Reed, C. A. Acc. Chem. Res. 1998, 31, 325.
    • (1998) Acc. Chem. Res. , vol.31 , pp. 325
    • Reed, C.A.1
  • 31
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    • note
    • In line with Scheme 4, pure allyldimethylsilyl triflate (2) was also found to catalyze the addition of 1 to aldehydes with similar ease and efficiency. Due to its very hygroscopic character, this compound is difficult to handle and its in situ preparation from 1 and AgOTf is therefore highly advantageous from the preparative point of view.
  • 33
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    • Allyldimethylsilyl triflate (2) has been previously used in stoichiometric amounts for the allylation of p-methoxybenzaldehyde which is assumed to proceed via the same cationic 6-membered transition state as shown in Scheme 4, cf.: Brook, M. A.; Crowe, G. D.; Hiemstra, H. Can. J. Chem. 1994, 72, 264.
    • (1994) Can. J. Chem. , vol.72 , pp. 264
    • Brook, M.A.1    Crowe, G.D.2    Hiemstra, H.3
  • 34
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    • note
    • 2O (41%), DMF (27%), DMSO (no reaction).
  • 36
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    • (a) Salimgareeva, I. M.; Zhebarov, O. Z.; Bogatova, N. G.; Lakhtin, V. G.; Yurev, V. P. Iz. Akad. Nauk. SSSR Ser. Kim. 1980, 2, 407; Chem. Abstr. 1980, 92, 181268.
    • (1980) Chem. Abstr. , vol.92 , pp. 181268
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    • Petrov, A. D.; Nikishin, G. I. Iz. Akad. Nauk. SSSR Ser. Kim. 1956, 243; English Translation: 1956, 233; Chem. Abstr. 1956, 50, 13726.
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  • 42
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    • note
    • 2 merely acts as a "conventional" Lewis acid and triggers the allylation by coordination onto the aldehyde via a regular Hosomi-Sakurai type process.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.