1.1- diiodo-2,6-dihydro

Furan, 2,3-dihydro-5-methyl-polymers, 1, 276 Furan, 2,3-dihydro-3-methylene- H NMR, 4, 577 Furan, 2,5-dihydro-2-methylene- H NMR, 4, 577 tautomerism aromaticity and, 4, 595 Furan, 2,5-dihydro-2-nitro-structure, 4, 550 Furan, 2,3-dihydroxy-tautomerism, 4, 37 Furan, 2,4-dihydroxy-tautomerism, 4, 37 Furan, 3,4-dihydroxy-tautomerism, 4, 37 Furan, 2,5-diiodo-nitration, 4, 602 synthesis, 4, 712 Furan, 3,4-diiodo-reactions, 4, 650 Furan, 2,3-dimethoxy-synthesis, 4, 625, 648 Furan, 2,5-dimethoxy-synthesis, 4, 648 Furan, 3,4-dimethoxy-cycloaddition reactions, 4, 64, 625 lithiation, 4, 651 reactions... 

Imidazole, 4,5-dibromo-l-methyl-synthesis, S, 399 Imidazole, 4,5-di-t-butyl-synthesis, S, 483 X-ray diffraction, S, 350 Imidazole, 4,5-dichloro-chlorination, S, 398 synthesis, S, 398, 473 Imidazole, 4-(3,4-dichlorophenyl)-nitration, 5, 433 Imidazole, 4,5-dicyano-hydrolysis, S, 435-436 synthesis, S, 461, 472, 487 Imidazole, 4,5-dicyano-1-vinyl-synthesis, S, 387 Imidazole, 4,5-dihydro-mass spectra, 5, 360 Imidazole, 4-(dihydroxybutyl)-synthesis, S, 484 Imidazole, 4,5-diiodo-nitration, S, 396 synthesis, S, 400 Imidazole, 2,4-diiodo-5-methyl-iodination, S, 400 Imidazole, 1,2-dimethyl-anions... 

CifiHpNO, 33522-95-1) see Nalbuphine Naloxone 2 -hydroxy-4 -(2,5-dihydro-5-oxo-3-furyl)acetophenone (C12H10O4 3447-63-0) see Benfurodil hemisuccinate 0-(4-hydroxy-3,5-diiodophenyl)-3,S-diiodo-a-methyl-tyrosine... 

Synthesis of l,3-dihydro-2,2-bis(trifluoroacetoxy)-benzo[c]tellurophenef A mixture of 2,2-diiodo-l,3-dihydrobenzo[c]tellurophene (4.86 g, 10 mmol) and silver trifluoroacetate (4.42 g, 20 mmol) in benzene (200 mL) was stirred at room temperature for 2 h. After filtration, the fdtrate was concentrated to give l,3-dihydro-2,2-bis(trifluoroacetoxy)-benzo[c]tellnrophene (4.17 g, 91%), m. p. 160°C (dec.). 

Azaborines have received a little attention in recent years, particularly 1,2,3-diazaborines (67) [75ACS(B)1036 76MI2 84MI1] (Scheme 58). Bromine in pyridine converted 5-ethyl-1,2-dimethyl-1,2-dihydro-1,2,3-borazine into a mixture of 4- and 6-monobromo derivatives, and the 4,6-dibromo compound. With iodine monochloride the 4-iodo or 4,6-diiodo products formed, depending on the mole ratio of iodine monochloride to substrate [75ACS(B)461]. 

Phenylacetylene on heating with NIS in methanol and catalytic amounts of HTI was transformed to the diiodo acetal PhC(OMe)2CHI2 (95%) under similar conditions, iodo-phenylacetylene afforded PhC(OMe)2COOMe (86%) [56]. Other reactions using NBS or NIS and catalytic HTI resulted in bromination and iodination of, respectively, polyalkylbenzenes [57] and A-acyl-2,3-dihydro-4-pyridones [58]. 

Synthesis of the racemic cyclic telluride (2,7-dihydro-17/-dinaphthoR,i ]tellurepin 78), possessing a C2 axis, was based on the reaction of 2,2 -bis(chloromethyl)-l,10-binaphthalene 109 with potassium tellurocyanate in dry DMSO. Reaction of 109 with iodide gave the diiodo derivative (Scheme 7) <2004JOM(689)2377, 1996RTC427>. 

Diboroles have been routinely analyzed by electron impact mass spectrometry. The method has been used to confirm only molecular masses when 2,3-dihydro-l,3-thiaboroles <19980M2379, 19990M1821> and 2-(2,2-dimethyl-propylidene)-4,5-diethyl-l,3-diiodo-2,3-dihydro-177-l,3-diborole 22 <2002ZN1125> were measured. When the molecular masses of other 2,3-dihydro-l/7-l,3-diboroles, 1,3-azaborolidines, 2,3-dihydro-l//-l, 3-stannaboroles, and... 

Bayer and Siebert tried to exchange methyl for iodine in 2-(2,2-dimethyl-propylidene)-4,5-diethyl-l,3-diiodo-2,3-dihydro-17/-l,3-diborole 22 by reacting with trimethylaluminium in pentane at -15°C <2002ZN1125>. However, due to the instability of the 1,3-dimethyl derivative 40, it was detected only by H NMR spectroscopy before rearranging into nido-Gt carboranes 41 and 42, as well as to polymeric materials (Scheme 2). 

Sodium io-domethamate (lodo l) (15e) l,4-Dihydro-3,5-diiodo-l-methyl-4-oxo-2,6- pyridinedicarbojy- lic acid, disodium salt 448.94 51.5... 

From H NMR data, a deshielding of the CH2 protons in 1,3-diiodo derivatives of 2,3-dihydro-... 

Benzylidene, 7-diiodo-l,3-dihydro-l-isobenzofuranone (232) with phenyl-hydrazine gave 4-benzyl-5,8-diiodo-2-phenyl-l(27/)-phthalazinone (233) (EtOH, reflux, 3h 41%) analogs Ukewise. ... 

In 2014, a copper and iron co-catalyzed Ullmann coupling of diiodo- and dibromoarenes and diphenols to aryl ether macrocycles was developed. In the presence of Cul (10 mol%) and Fe(acac)3 (10 mol%) with K2CO3 as a base in DMSO at 110 °C, the corresponding macrocycles can be isolated in low to moderate yields. However, a long reaction time (7 days) is required. Li and co-workers developed a palladium-catalyzed Ullmann protocol and applied it to the synthesis of 6,7-dihydro-5H-dibenzo[c,e]azepines and biaiyls. In the presence of Pd(OAc)2 and KOAc, intramolecular or intermolecular Ullmann... 

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