34898-74-3

Basic information

• Product Name: Benzene, 1,1'-[(1Z)-1,2-dimethoxy-1,2-ethenediyl]bis-
• CAS NO: 34898-74-3
• Molecular Formula: C16H16O2
• Molecular Weight: 240.302
• Mol File: 34898-74-3.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: Benzene, 1,1'-[(1Z)-1,2-dimethoxy-1,2-ethenediyl]bis-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1'-[(1Z)-1,2-dimethoxy-1,2-ethenediyl]bis-(34898-74-3)
• EPA Substance Registry System: Benzene, 1,1'-[(1Z)-1,2-dimethoxy-1,2-ethenediyl]bis-(34898-74-3)

Safety Data

• Hazardous Substances Data: 34898-74-3(Hazardous Substances Data)

Upstream product

• 27436-93-7 pentacarbonyl(1-methoxybenzylidene)chromium⁽⁰⁾ 
• 85370-23-6 (Z)-2-methoxy-11,2-diphenylvinyl alcohol 
• 77-78-1 dimethyl sulfate 
• 3524-62-7 benzoin monomethyl ether 
• 80-48-8 methyl p-toluene sulfonate 
• 17201-06-8 sodium dimethyl phosphonate 
• 134-81-6 benzil 
• 119-53-9 2-hydroxy-2-phenylacetophenone 
• 5925-76-8 selenobenzoic acid O-methyl ester 
• 74-87-3 methylene chloride 
• 420-37-1 trimethoxonium tetrafluoroborate 
• 591-51-5 phenyllithium 
• 199620-14-9 chromium⁽⁰⁾ hexacarbonyl 
• 3469-17-8 2-diazo-1,2-diphenylethan-1-one 

Downstream Products

• 1147-17-7 (1R,2S)-1,2-dimethoxy-1,2-diphenylethane 
• 93-58-3 benzoic acid methyl ester 
• 34898-75-4 cis-3,4-Dimethoxy-3,4-diphenyl-1,2-dioxetane 

Relevant articles and documents

Control over the E/Z selectivity of the catalytic dimerization of group 6 (Fischer) metal carbene complexes

The systematic investigation of the effect of different catalysts and additives in the reaction of self-dimerization of alkoxychromium(0) (Fischer) carbene complexes resulted in the selection of Pd(PtBu 3)2 to effect this

Quasi-template Effect: a Tool for Controlling Stereochemistry in Acyclic Systems. Attempted Stereoselective Synthesis of α,α'-Dimethoxystilbene

Alkylation with methyl tosylate of stilbenediol dianion, prepared in the reaction of benzoin with a series of alkali-metal hydroxides in THF, gave (E)- and (Z)-α,α'-dimethoxystilbenes as the major products in most cases, the E:Z ratio of which varies from 0.4 to 5.0 depending upon the alkali-metal cation employed; the results are rationalized in the quasi-template effect in an acyclic system and the hard-soft ion principle.

New Olefin and Oxiran Syntheses from Carbonyl Compounds, and Diethyl Sodiophosphonate Anions and 1-Aminophosphonate Amino-anions

Reaction of aromatic aldehydes, and phthalic and thiophthalic anhydrides, with diethyl sodiophosphonate (1) gives the trans-stilbenes (3), 3,3'-biphthalidylidene (30), and 3,3'-bis-(2-thiophthalidylidene) (33).Similar treatment of fluorenone (8) and xanthone (17) with (1) leads to 9,9'-bis(fluororenylidene) (9) and 9,10-dihydro-9-oxophenanthrene-10-spiro-9'-fluorene (10), and to 9,9'-bixanthenylidene (18) and 9,9'-bixanthenyl (19), respectively, but the reaction using anthrone (11) as a carbonyl reagent yields only anthraquinone (12) and anthracene (13).Similar treatment using N-methylisatoic anhydride (34) and N-methylisatin (36) produces NN'-dimethylisoindigo (35).Reaction of benzaldehyde and p-chlorobenzaldehyde with diethyl 1--cyclohexylphosphonate (40) gives mainly corresponding mixtures of trans- (41a,b) and cis-stilbene epoxides (42a,b), while similar treatment of p-nitrobenzaldehyde with (40) produces 4,4'-dinitrostilbene (3e).Reaction of (8) with (40), as well as with (1), gives (9) and (10).The mechanism of formation of these products is discussed.