A Highly syn-Selective Allylation of Aldehydes in Water

Abstract

nBu4NBr/PbI2 acts as an effective catalyst for the allylation of aldehydes 2 with the allylic tin reagents 1 in water. A high syn‐selectivity of 3 was achieved in water without any aprotic solvents in the reaction of the aromatic aldehydes 2 with the crotyltri‐n‐butyltin reagents 1b, 1c irrespective of their E/Z geometry.

Rhodium‐Catalyzed Allylation of Aldehydes with Homoallylic Alcohols by Retroallylation and Isomerization to Saturated Ketones with Conventional or Microwave Heating

“…The spectra of compounds 1 f ,12 1 i ,13 2 a – e ,14 3 a ,15 3 b ,16 3 c ,17 3 d ,18 3 e ,18 3 g ,18 6 a ,19 6 b ,20 6 d ,14 6 e ,14 13 a ,19 13 b ,20 13 d ,21 13 e ,22 13 i ,23 13 j ,24 and 14 c 25 were identical to those reported in the literature.…”

Gallium-mediated allyl transfer from bulky homoallyl alcohol to aldehydes or alkynes: Control of dynamic σ-allylgalliums based on retro-allylation reaction

“…The following compounds were characterized according to the literature: 2a [11], 2b [12], 2c [11], 2d [11], 2e [13], 2f [11], 2h [14], 2i [15], 2j [15], 2k-m [11], 2n [16], 2o [14], 2p [17], 2q [17], 6b [18], 6f [18], 6g [18], 6g-d 2 [19], 6g-d 1 [20], 6i [18], and 6n [21]. d 14.34, 15.09, 16.39, 22.89, 29.35, 29.38, 29.40, 29.50, 29.65, 32.10, 32.51, 43.88, 44.83, 76.21, 76.54, 115.86, 116.59, 130.21, 130.63, 133.57.…”

Solvothermal Synthesis, Crystal Structures, and Photocatalytic Properties of Iodoplumbate Hybrids with Nickel(II) Complex Templates

“…Compounds 1 and 3 are less active than the organic hybrid iodoplumbates {(tbp) 2 [Pb 3 I 12 ]} n (tbp = 1,3,5‐tri(N‐pyridiniummethyl)benzene tribromide) and {(tbpm)[Pb 3 I 9 ] · H 2 O} n (tbpm = 1,3,5‐tri(4‐methylpyridiniummethyl)benzene tribromide) in the photodegradation of MB, but compounds 4 and 5 are more effective than the organic hybrid iodoplumbates in the same photodegradation of MB. [5b] Comparing the crystal structures of compounds 3 and 4 , they contain similar 1‐D iodoplumbate polymers. The discrepancies of the catalytic efficiencies between 3 and 4 might be attributed to the different structures of their Ni II complex cations.…”