57688-55-8

Upstream product

• 505-23-7 1,3 dithiane 
• 926-02-3 tert-butyl vinyl ether 
• 109-80-8 1.3-propanedithiol 
• 102-52-3 malonaldehydebis(dimethylacetal) 

Downstream Products

• 79092-37-8 [2-[1,3]Dithian-2-yl-eth-(Z)-ylideneamino]-acetic acid 4-nitro-benzyl ester 
• 143952-87-8 (4S,5S)-4,5-Bis-benzyloxymethyl-2-[1,3]dithian-2-ylmethyl-[1,3]dioxolane 
• 857634-85-6 (2S,3R,4S,5R)-2-(tert-butyldimethylsilanyloxymethyl)-3-(dimethylphenylsilanyl)-5-[1,3]dithian-2-ylmethyl-4-methyltetrahydrofuran 
• 143953-05-3 [2-((4R,5R)-4,5-Dimethyl-[1,3]dioxolan-2-ylmethyl)-[1,3]dithian-2-yl]-phenyl-methanol 
• 143952-97-0 [2-((4R,6R)-4,6-Dimethyl-[1,3]dioxan-2-ylmethyl)-[1,3]dithian-2-yl]-phenyl-methanol 
• 143953-13-3 [2-((4S,5S)-4,5-Bis-methoxymethyl-[1,3]dioxolan-2-ylmethyl)-[1,3]dithian-2-yl]-phenyl-methanol 
• 143953-43-9 {2-[(4R,5R)-4,5-Bis-(1-methoxy-1-methyl-ethyl)-[1,3]dioxolan-2-ylmethyl]-[1,3]dithian-2-yl}-phenyl-methanol 
• 143953-19-9 1-[2-((4S,5S)-4,5-Bis-benzyloxymethyl-[1,3]dioxolan-2-ylmethyl)-[1,3]dithian-2-yl]-2-methyl-propan-1-ol 
• 143953-17-7 1-[2-((4S,5S)-4,5-Bis-benzyloxymethyl-[1,3]dioxolan-2-ylmethyl)-[1,3]dithian-2-yl]-butan-1-ol 
• 143953-21-3 1-[2-((4S,5S)-4,5-Bis-benzyloxymethyl-[1,3]dioxolan-2-ylmethyl)-[1,3]dithian-2-yl]-2,2-dimethyl-propan-1-ol 
• 143953-53-1 {2-[(4R,5R)-4,5-Bis-(1-ethyl-1-methoxy-propyl)-[1,3]dioxolan-2-ylmethyl]-[1,3]dithian-2-yl}-phenyl-methanol 
• 143953-25-7 (E)-1-[2-((4S,5S)-4,5-Bis-benzyloxymethyl-[1,3]dioxolan-2-ylmethyl)-[1,3]dithian-2-yl]-but-2-en-1-ol 
• 143953-33-7 {2-[(4R,5R)-4,5-Bis-((R)-1,2-dimethoxy-ethyl)-[1,3]dioxolan-2-ylmethyl]-[1,3]dithian-2-yl}-phenyl-methanol 
• 143953-23-5 [2-((4S,5S)-4,5-Bis-benzyloxymethyl-[1,3]dioxolan-2-ylmethyl)-[1,3]dithian-2-yl]-phenyl-methanol 

Relevant academic research and scientific papers

Method for synthesizing alpha-1,3-dithiane substituted aldehyde compound

The invention relates to a method for synthesizing alpha-1,3-dithiane substituted aldehyde compound. The preparation method comprises the following steps: under existence of an activating agent of N-chloro succinimide and a catalyst of Cu(II), dissolving 1,3-dithiane and substituted vinyl ether into an organic solvent, reacting for 1 to 4 hours under room temperature to 50 DEG C and separating and purifying to obtain alpha-1,3-dithiane substituted aldehyde compound. The method disclosed by the invention has moderate operation condition and avoids rigorous dewatering operation and device, the utilized commercialized vinyl ether compound is cheap and easy to obtain, a reaction process is simple, good functional group tolerance is obtained, a beneficial technological effect is obtained, and the method can be well applied to scientific researches and industrial production.

Chemistry of the podocarpaceae LXXI. Preparation, structure, and reactions of some (arene)tricarbonylchromium(0) complexes. Crystal structure of α-tricarbonylchromium(0)

Tricarbonylchromium(0) (7), tricarbonylchromium(0) (11) and (benzene)tricarbonylchromium(0) (10) were prepared and examined.Complex 7 was obtained as a mixture of diastereomers, an X-ray structural determination showing that the α-isomer possesses a near eclipsed conformation, in agreement with the conformation in solution deduced from 400 MHz 1H NMR analysis.Carbanions derived from 1,3-dithiane, 2-methyl-1,3-dithiane and 2-(2,2-dimethoxyethyl)-1,3-dithiane (24), and the dianion derived from 2,2'-methylenebis-1,3-dithiane (27) were prepared and brought into reaction with the complexes.Compounds 23 and 33 resulted from regioselective attack on 7 at the site predicted.Treatment with methyl electrophiles of the dithianyl η5-intermediate leading to 22 did not give products of acetyl incorporation.Arene lithiation-electrophilic quenching of 7 gave a mixture of compound 6 and its C(14) regioisomer along with the novel ketone 39 and its C(14) regioisomer.