Phenyl-1,3-octadiene

PALLADIUM-CATALYZED REACTION OF 1-ALKENYLBORONATES WITH VINYLIC HALIDES (1Z,3E)-1-PHENYL-1,3-OCTADIENE... 

Sy 1 -phenylethyltrifluorosilane 439 1-phenylethylzinc chloride 27, 29 1 -phenyl-3-methyl-1,2-butadiene 475 (1Z,3E)-1-phenyl-1,3-octadiene, synthesis 84-5 phenylpalladium iodide complex 137 l-phenylpent-4-en-l-yne 196-7 (Z)-phenyl-substituted dendralene 117 ( -(-)-1 -phenyl-1 -trifluoroacetoxy-2-propyne 475 l-phenyl-4-triinethylsilyl but-2-ene 351... 

Sample Problem 26.2 Devise asynthesis of (1Z,3E)-1-phenyl-1,3-octadiene from 1-hexyne and (Z)-2-bromostyrene using... 

Bei der Hydroaluminierung von Alkinen tritt die Oligomerisierung oft bereits bei nied-rigeren Temperaturen in den Vordergrund. So erhalt man z.B. aus 3,3-Dimethyl-l-phe-nyl-butin (I) und Bis-[2-methyl-propyl]-aluminiumhydrid (1 1) bei 50° 94% d.Th. cis-3,3-Dimethyl-l-phenyl-buten-(l) (II)5 neben 6% d.Th. trans,trans-2,2,7,7-Tetramethyl-4,5-diphenyl-octadien-(3,5) (III) ... 

Pericas and coworkers173 studied the endo selective reactions of 1-alkoxy-l,3-butadienes and 1-alkoxy-l,3-octadienes with maleic anhydride. They found that the trans-2-phenyl-cyclohexan-l-ol and 3-exo-(neopentyloxy)isobornan-l-ol based chiral dienes induced the highest facial selectivities. The relative transition state energies for the formation of the different diastereomers were calculated using semi-empirical methods (AMI). 

Gas chromatographic analysis of the product (Hewlett-Packard fused silica, cross-linked methyl silicone capillary column, 25 m x 20 mm, column temperature 100-270°C, injection temperature 250°C) shows that the product is over 99% chemically and isomerically pure, (Z,E)-l-Phenyl-l,3-octadiene shows the following spectral properties IR (neat) cm 1640, 1595, 1490, 985 ... 

Palladium(0)-Catalyzed Reaction of 1-Alkenylboronates with Vinylic Halides Synthesis of (lZ,3E)-l-Phenyl-l,3-octadiene... 

Generation of various phenyl-substituted disilenes by the photolysis of the masked disilenes, 7,8-disilabicyclo[2.2.2]octadiene derivatives, is quite useful, especially for unsymmetrically substituted disilenes. Investigation of the regiochemistry as well as the diastereochemistry of alcohol addition to phenyltrimethyldisilene was made possible for the first time by using this method27. 

Ethin 2-(2-Methyl-propylthio)-l-phenyl- V/2a, 627 Thieno 3,4-b bicyclo[2.2.2 octadien ... 

SYNS ACETIC ACID, PHENYL-, 3,7-DLMETHYL-2,6-OCTADIENYL ESTER, (E)-(8CI) O BENZENEACETIC ACID, 3,7-DIMETHYL-2,6-OCTADIENYL ESTER, (E)- 3,7-DLMETHYL-2,6-OCTADIEN-I -YL PHENYXACETATE trans-3,7-DIMETH3 L-2,6-OCTADIEN-l-YL PHENYLACETATE GERANYL a-TOLUATE FEMA No. 2516... 

Ind-amido titanium complexes with o -alkenyl functions in position 2 of the indenyl ring have been synthesized and characterized. After activation with MAO, these complexes were used as homogeneous and heterogeneous catalysts for the homopolymerization of ethylene and propylene and the co-polymerization of ethylene and 1,7-octadiene.406 A series of alkyl-, u -alkenyl-, and u -phenylalkyl-substituted Cp- and Ind-amido dichloro titanium complexes have been synthesized and characterized. The cj-phenylalkyl-substituted complexes react with LiBu to give metallacycles via a CH activation reaction on the ortho-position of the phenyl group (Scheme 305).741 742 After activation with MAO, these complexes catalyze ethylene polymerizations. The substituents on the aromatic system influence the polymerization activity of the catalysts and the properties of the polyethylene. The u -alkenyl-substituted catalysts show self-immobilization in ethylene polymerization. 

Et(Ind)2ZrCl2/MAO gives copolymers of ethylene or propylene with nonconjugated dienes, such as 2-methyl-1,4-pentadiene, 7-methyl-1,6-octadiene and 1,7-octadiene, (Eq. 23) [103]. rac-Et(Ind)2ZrCl2/MAO also catalyzes copolymerizations of asymmetrically substituted linear dienes, 6-phenyl-1,5-hexadiene, 7-methyl-1,6-octadiene, and R-(+)-5,7-dimethyl- 1,6-octadiene. The copolymerization of R-(+)-5,7-dimethyl-l,6-octadiene with propylene to give the polymer with ca. 15% diene incorporation. The ratio of the diene-derived part is ca. 15% of the polymer [104]. 

Like the related 4-phenyl-l,2,4-triazoline-3,5-dione, 1,4-phthalazinedione is a reactive dienophile. Thus the first known Diels-Alder adduct (III) of 1,3-cyclo-octadiene was obtained with this dienophile.3... 

Diels-Alder dienes Benzene, see Dicyanoacetylene. Cyclooctatetraene, see 4-Phenyl-l,2,4-triazoline-3,5-dione. Cyclopentadiene ketals. cis-7,8-Dichlorobicyclo[4.2.0]octadiene-2,4, see cis-3,4-Dichlorocyclobutene. 5,5-Dimethoxy-l,2,3,4-tetrachlorocyclopentadiene. Hexa-chlorocyclopentadiene. Methyl tra .rl2,4-pentadienoate. A 4 l6-Steroid dienes, see 4-Phenyl-l,2,4-triazoline-3,5-dione. Tetrachlorocyclopentadienone ethylene ketal ... 

Oxo-2-phenyl-4H-(l-benzothiopyran) liefert unter diesen Bedingungen mit Diphenylacetylen 7-0xo-l,9,10-triphenyl-(3,4-benzo-2-thia-bicydo[4.2-0]octadien-(3,7)y ( 100% d.Th.)1. 

Octadien-(2,6>-diyl-( l,8)-dioxyJ- 950 Octylamino- 1261 Pentachlor-benzylmercapto- 141 Pentachlor-(l-brom-athyl)- 148 Pentachlor-cyclohexylmercapto- 141,1031 Pentachlor-( 1,2,2-tribrom-athyl)- 454 Pentachlor-(x,x,x-trichlor-athyl)- 102 Pentafluor-propenyl- 1435 4-Phenyl-l-biphenylyl-(4)- 1364... 

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