Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2012 Jul 20;14(14):3756-9.
doi: 10.1021/ol301614v. Epub 2012 Jul 11.

Synthesis of functionalized cyclohexenone core of welwitindolinones via rhodium-catalyzed [5 + 1] cycloaddition

Affiliations

Synthesis of functionalized cyclohexenone core of welwitindolinones via rhodium-catalyzed [5 + 1] cycloaddition

Min Zhang et al. Org Lett. .

Abstract

The cyclohexenone core of welwitindolinones was synthesized by a Rh(I)-catalyzed [5 + 1]-cycloaddition of an allenylcyclopropane with CO. A pentasubstituted cyclopropane was prepared successfully by a Rh(II)-catalyzed intramolecular cyclopropanation of alkenes with chlorodiazoacetates.

PubMed Disclaimer

Figures

Scheme 1
Scheme 1
Proposed Strategies for Welwitindolinones
Scheme 2
Scheme 2
Intramolecular Cyclopropanation of an Alkene Substituted with a N-Methyl Indole
Scheme 3
Scheme 3
Intramolecular Cyclopropanation of an Alkene Substituted with a N-Boc protected Indole
Scheme 4
Scheme 4
Preparation of Penta-substituted Allenylcyclopropane
Scheme 5
Scheme 5
Rh-catalyzed [5+1] cycloaddition of Allenylcyclopropane and CO

Similar articles

Cited by

References

    1. Stratmann K, Moore RE, Bonjouklian R, Deeter JB, Patterson GML, Shaffer S, Smith CD, Smitka TA. J Am Chem Soc. 1994;116:9935.
    2. Jimenez JI, Huber U, Moore RE, Patterson GML. J Nat Prod. 1999;62:569. - PubMed
    1. Smith CD, Zilfou JT, Stratmann K, Patterson GML, Moore RE. Mol Pharmacol. 1995;47:241. - PubMed
    2. Zhang XQ, Smith CD. Mol Pharmacol. 1996;49:288. - PubMed
    1. For efforts towards the synthesis of welwitindolinones, see: Konopelski JP, Deng HB, Schiemann K, Keane JM, Olmstead MM. Synlett. 1998:1105.Wood JL, Holubec AA, Stoltz BM, Weiss MM, Dixon JA, Doan BD, Shamji MF, Chen JM, Heffron TP. J Am Chem Soc. 1999;121:6326.Kaoudi T, Quiclet-Sire B, Seguin S, Zard SZ. Angew Chem Int Ed. 2000;39:731.Jung ME, Slowinski F. Tetrahedron Lett. 2001;42:6835.Deng HB, Konopelski JP. Org Lett. 2001;3:3001.Lopez-Alvarado P, Garcia-Granda S, Alvarez-Rua C, Avendano C. Eur J Org Chem. 2002:1702.Ready JM, Reisman SE, Hirata M, Weiss MM, Tamaki K, Ovaska TV, Wood JL. Angew Chem Int Ed. 2004;43:1270.Mackay JA, Bishop RL, Rawal VH. Org Lett. 2005;7:3421.Baudoux J, Blake AJ, Simpkins NS. Org Lett. 2005;7:4087.Greshock TJ, Funk RL. Org Lett. 2006;8:2643.Lauchli R, Shea KJ. Org Lett. 2006;8:5287.Xia J, Brown LE, Konopelski JP. J Org Chem. 2007;72:6885.Richter JM, Ishihara Y, Masuda T, Whitefield BW, Llamas T, Pohjakallio A, Baran PS. J Am Chem Soc. 2008;130:17938.Boissel V, Simpkins NS, Bhalay G, Blake AJ, Lewis W. Chem Commun. 2009:1398.Boissel V, Simpkins NS, Bhalay G. Tetrahedron Lett. 2009;50:3283.Tian X, Huters AD, Douglas CJ, Garg NK. Org Lett. 2009;11:2349.Trost BM, Mcdougall PJ. Org Lett. 2009;11:3782.Brailsford JA, Lauchli R, Shea KJ. Org Lett. 2009;11:5330.Freeman DB, Holubec AA, Weiss MW, Dixon JA, Kakefuda A, Ohtsuka M, Inoue M, Vaswani RG, Ohki H, Doan BD, Reisman SE, Stoltz BM, Day JJ, Tao RN, Dieterich NA, Wood JL. Tetrahedron. 2010;66:6647.Heidebrecht RW, Gulledge B, Martin SF. Org Lett. 2010;12:2492.Ruiz M, Lopez-Alvarado P, Menendez JC. Org Biomol Chem. 2010;8:4521.

    1. Baran PS, Richter JM. J Am Chem Soc. 2005;127:15394. - PubMed
    2. Reisman SE, Ready JM, Hasuoka A, Smith CJ, Wood JL. J Am Chem Soc. 2006;128:1448. - PubMed
    3. Baran PS, Maimone TJ, Richter JM. Nature. 2007;446:404. - PubMed
    4. Reisman SE, Ready JM, Weiss MM, Hasuoka A, Hirata M, Tamaki K, Ovaska TV, Smith CJ, Wood JL. J Am Chem Soc. 2008;130:2087. - PubMed
    1. Bhat V, Allan KM, Rawal VH. J Am Chem Soc. 2011;133:5798. - PMC - PubMed
    2. Bhat V, Mackay JA, Rawal VH. Org Lett. 2011;13:3214. - PMC - PubMed
    3. Bhat V, Rawal VH. Chem Commun. 2011;47:9705. - PubMed
    4. Bhat V, Mackay JA, Rawal VH. Tetrahedron. 2011;67:10097. - PMC - PubMed
    5. Allan KM, Kobayashi K, Rawal VH. J Am Chem Soc. 2012;134:1392. - PMC - PubMed

Publication types