3- propenoyl chlorides

Phenyl-l,2,3,6-tetrahydropyrido[2,l- ][l,3]thiazino[3,2- ]quinolin-6-ones were prepared by the reaction of 2-mercapto-5-phenyl-l,4-dihydroquinolin-4-ones with 1,3-dihalopropane <1997JAK97/278780>. 7-Acetyl-2-aryl-9-cyano-6-methyl-8-phenyl-3,4-dihydro-277,877-pyrido[2,l- ][l,3]thiazin-4-ones were obtained from 5-acetyl-3-cyano-6-methyl-4-phenyl-l,2,3,4-tetrahydropyridine-2-thione with 3-aryl-2-propenoyl chloride <2002CHE761>. Reaction... 

Phenyl-2-propenoic acid, e279 3-Phenyl-2-propen-l-ol, c282 3-Phenyl-2-propenoyl chloride, c280 3-Phenylpropyl alcohol, pi46 Phenyl propyl ketone, b619... 

General procedure for the cyclization of f-(aryltelluro)propenoyl chlorides with aluminium chloride The propenoyl chloride derivatives were dissolved in methylene chloride (1 g, 10 mL) under a nitrogen atmosphere. The solution was cooled to -78°C, and 1.1 equiv of aluminium chloride was added. The cooling bath was removed and the reaction was allowed to warm to room temperature. After stirring for 1 h at room temperature, the reaction mixture was poured into ice-water, and the products were extracted with several portions of methylene chloride. The combined methylene chloride extracts were dried over sodium sulphate and concentrated. The residues were recrystallized from methanol if NMR spectroscopy showed a single product. 

In special cases of nonracemic compounds, both relative and absolute configuration can be determined by means of circular dichroism. Thus, the relative and absolute configurations of acyclic 1.2-, 1,2,3-, 1,2,3,4-, and 1,2,3,4,5-polyols can be determined by the bichromophoric exciton chirality method after a two-step derivatization [primary and secondary hydroxy groups are selectively esterified with 9-anthroyl chloride (2) and ( )-3-(4-methoxyphenyl)-2-propenoyl chloride (4), respectively] and comparison of the CD curves with references curves265. 

High yields of 1,2-oxatellurolium chlorides 67 were achieved in the thermal- or AlCl3-catalyzed rearrangements of /3-(aryltelluro)propenoyl chlorides (83JA883 88MI4). 

Mercury(II) perchlorate. 6 (or 4)dimethyl sulfoxide, 4073 Mercury(II) Af-perchlorylbenzylamide, 3644 Mercury(II) peroxybenzoate, 3630 Mercury(II) picrate, 3427 Mercury(II) sulfide, 4602 Mercury(II) thiocyanate, 0975 Mercury(I) nitrate, 4604 Mercury(I) oxide , 4608 Mercury(I) thionitrosylate, 4605 Mercury, 4595 Mercury nitride, 4610 Mercury peroxide, 4601 (9-MesitylenesuIfonylhydroxylami ne, 3164 Methacryloyl chloride, see 2-Methyl-2-propenoyl chloride, 1453 f Methanamine, see Methylamine, 0491... 

An important difference exists in the direction of cyclization of type 22 /3-(arylchalcogeno)propenoyl chlorides as determined by the nature of the chalcogen (83JA883 88MI2). 

Protected 5,6-dihydro-477-thiopyran-4-one is lithiated at the 2-position allowing the introduction of a 2-SnMe3 function to give compound 312. Sequential reactions with propenoyl chloride and H2S yield the thiopyrano[3,2-4]-thiopyran system (Scheme 53) <1998EJO 989>. 

Scheme 13 1,2-Oxaselenolylium and 1,2-oxatellurolylium chlorides from propenoyl chlorides...

C9H6CINO 5-chloro-8-quinolinol 130-16-5 25.00 1 3100 2 15965 C9H7CIO trans-3-phenyt-2-propenoyl chloride 17082-09-6 45.00 1.1617 1... 

C8H2402Si3 octamethyltrisiloxane 107-51-7 426.15 36.836 1,2 15965 C9H7CIO trans-3-phenyl-2-propenoyl chloride 17082-09-6 530.65 46.837 1,2... 

When strongly electron-withdrawing substituents activate the alkene, the division between cycloadditions and what appear to be electrophilic substitutions becomes very narrow. We have already touched upon the ambiguous behavior of diazonium salts in Section V,A, Part I (cf. structure 104, in Part I). Whereas furan adds propenoyl chloride or nitroethene in the endo-1,4 mode, 2-methylfuran undergoes substitution to give 2,5-disubsti-tuted furans (16).38a Tetracyanoethylene also reacts by substitution instead of addition. 

---