Helvetica Chimica Acta

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Помогите пожалуйста со следующими статьями:

1.Syntheses and tandem Diels-Alder reactivities of 7,7-diphenyl-[2.2.1]hericene (= 7-(diphenylmethylidene)-2,3,5,6- tetramethylidenebicyclo[2.2.1]heptane) and 7-oxa[2.2.1]hericene ( = 2,3,5,6-tetramethylidenebicyclo[2.2.1]heptan-7-one).Albino Rubello, Pierre Vogel
Helvetica Chimica Acta. 1988. Volume 71, Issue 5. p.1268-1280.

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http://dx.doi.org/10.1002/hlca.19880710538

2. Diels-Alder Regioselectivity Controlled by Remote Substituents. The Cycloadditions of 1-(Dimethoxymethyl)-2,3-dimethylidene- and -2,3,5,6-tetramethylidene-7-oxabicyclo[2.2.1]heptanes. Jean-Lue Mйtral, JьRgen Lauterwein, Pierre Vogel
Helvetica Chimica Acta. 1986. Volume 69, Issue 6. p. 1287-1309.

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http://dx.doi.org/10.1002/hlca.19860690603

3.Synthesis and Diels-Alder Reactivity of 1-(Dimethoxy)methyl-2,3,5,6-tetramethylidene-7-oxabicyclo[2.2.1]heptane. Preliminary communication.
Jean-Luc Mйtral, Pierre Vogel
Helvetica Chimica Acta. 1985. Volume 68, Issue 2. p. 334-337.

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http://dx.doi.org/10.1002/hlca.19850680207

4. Face Selectivity of the Diels-Alder Additions of Sulfur-Substituted Dienes and Tetraenes Grafted onto 7-Oxabicyclo[2.2.1]heptanes.
Jean-Marc Tornare, Pierre Vogel, A. Alan Pinkerton, Dieter Schwarzenbach
Helvetica Chimica Acta. 1985. Volume 68, Issue 8. p. 2195-2215.

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http://dx.doi.org/10.1002/hlca.19850680815

5. Face Selectivity of the Diels-Alder Additions of Exocyclic Dienes Grafted onto 7-Oxabicyclo[2.2.1]heptanes. Cyril Mahaim, Pierre Vogel
Helvetica Chimica Acta. 1982. Volume 65, Issue 3. p. 866-886.

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http://dx.doi.org/10.1002/hlca.19820650321

6. Face Selectivity of the Diels-Alder Additions of 2-Substituted 5,6-bis((E)-chloromethylidene)bicyclo[2.2.2]octanes. Marco Avenati, Pierre Vogel
Helvetica Chimica Acta. 1982. Volume 65, Issue 1. p. 204-216.

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http://dx.doi.org/10.1002/hlca.19820650119

7. Interaction between Exocyclic s-cis-Butadiene and Homoconjugated Functions. Preparation and Diels-Alder Reactivity of Remotely Substituted 2,3-Dimethylidenebicyclo[2.2.2]octanes.Marco Avenati, Olivier Pilet, Pierre-Alain Carrupt, Pierre Vogel
Helvetica Chimica Acta. 1982. Volume 65, Issue 1. p. 178-187.

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http://dx.doi.org/10.1002/hlca.19820650117

8.The Synthesis and Reactions of Dialkyl 1-Vinylvinyl-Phosphates.Frank Kienzle, Perry Rosen
Helvetica Chimica Acta. 1979. Volume 62, Issue 2. p. 442-447.

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http://dx.doi.org/10.1002/hlca.19790620208

9.Cycloadditionen von 3,4-Dimethoxyfuran an Dienophile.
Peter Xaver Iten, Alfred Andrй Hofmann, Conrad Hans Eugster
Helvetica Chimica Acta. 1979. Volume 62, Issue 7. p. 2202-2210.

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http://dx.doi.org/10.1002/hlca.19790620717

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