90899-07-3

Upstream product

• 18376-41-5 Acetic acid (1R,3R,4R,6R)-2,3,4,6-tetraacetoxy-cyclohexyl ester 
• 65173-65-1 (3aR,7aS)-2,2-dimethyl-3a,4,7,7a-tetrahydrobenzo-1,3-dioxole 
• 1165952-92-0 cyclohexa-1,4-diene 
• 406682-04-0 cis-cyclohex-4-ene-1,2-diol 
• 55990-89-1 (1α,2α,3β,4α,5α)-1,2:4,5-dianhydro-1,2,3,4,5-cyclohexane-pentol 
• 62776-30-1 1,2:4,5-cis-Dianhydrodesoxyinosit 
• 125477-54-5 conduritol A terabenzoate 
• 130824-35-0 proto-quercitol tetramethyl ether 
• 18376-41-5 DL-proto-quercitol pentaacetate 
• 72598-62-0 2-bromo-7-oxabicyclo<4.1.0>hept-3-ene 
• 55990-90-4 (1α,2β,3α,5α,7α)-2-Brom-4,8-dioxatricyclo<5.1.0.0^3,5>octan 
• 55990-88-0 (1α,2α,3α,5α,7α)-4,8-Dioxatricyclo<5.1.0.0^3,5>octan-2-ol-acetat 
• 55990-90-4 (1α,2α,3α,5α,7α)-2-Brom-4,8-dioxatricyclo<5.1.0.0^3,5>octan 
• 62774-79-2 (1α,2α,3α,5α,7α)-2-(2,4-Dinitrophenoxy)-4,8-dioxatricyclo<5.1.0.0^3,5>octan 

Downstream Products

• 18376-41-5 rac-(1R,2S,3R,4S,5S)-cyclohexane-1,2,3,4,5-pentayl pentaacetate 
• 22144-52-1 (+/-)-3r,4t,5c-trihydroxy-cyclohexane-1,2-dione-bis-phenylhydrazone 
• 20021-56-1 DL-(1,3/2,4)-1,2,3,4-Tetra-O-acetylcyclohexanetetrol 
• 6216-28-0 DL-(1,3,5/2,4)-1-Acetamido-2,3,4,5-tetra-O-acetylcyclohexanetetrol 
• 2975-92-0 (+/-)-1L-cyclohexane-1,3/2,4-tetrol 
• 18376-41-5 Acetic acid (1R,3R,4R,6R)-2,3,4,6-tetraacetoxy-cyclohexyl ester 

Relevant academic research and scientific papers

An Advantageous Synthesis of 1D- and 1L-1,2,3,5/4-Cyclohexanepentol

The title compounds D-10 and L-10 were prepared from 1 in eight steps and in a combined overall yield of 41-49%.

Stereoselective syntheses of racemic quercitols and bromoquercitols starting from cyclohexa-1,4-diene: Gala-, epi-, muco-, and neo-quercitol

The efficient synthesis of gala-, epi-, neo-, and muco-quercitols and some brominated quercitols starting from cyclohexa-1,4-diene is reported. Treatment of the dibromide, obtained by the addition of bromine to cyclohexa-1,4-diene, with m-chloroperbenzoic

An efficient and highly stereoselective synthesis of gala-Quercitol from 1,4-cyclohexadiene

gala-Quercitol was synthesized from 1,4-cyclohexadiene in seven steps and overall yield of 68%. Reaction of 5,6-dibromo-2,2-dimethylhexahydro-1,3-benzodioxole, synthesized from 1,4-cyclohexadiene in three steps, with excess NaOMe gave (3aα,5α,7aα)-5-metho

A concise and convenient synthesis of DL-proto-quercitol and DL-gala-quercitol via ene reaction of singlet oxygen combined with [2 + 4] cycloaddition to cyclohexadiene

Photooxygenation of 1,4-cyclohexadiene afforded hydroperoxy endoperoxides 3 and 4 in a ratio of 88:12. Reduction of 3 with LiAlH4 or thiourea followed by acetylation of the hydroxyl group and KMnO4 oxidation of the double bond gave proto-quercitol 10b. Application of the same reaction sequences to 4 resulted in the formation of gala-quercitol 14. Quercitols were easily obtained by ammonolysis of acetate derivatives in MeOH. The outcome of dihydroxylation reactions were supported by conformational analysis.

A novel synthesis of DL-proto-, and DL-vibo- quercitol via 1,4- cyclohexadiene

Photooxygenation of 1,4-cyclohexadiene 3 followed by reduction with LiAIH4 or thiourea gave (25/1)-cyclohex-3-ene-triol 7a. trans-Hydroxylation of triol 7a with three different methods afforded both of proto-quercitol 1a and vibo-quercitol 2a.

A Stereocontrolled Synthesis of proto-Quercitol

Conduritol A tetramethyl ether (2) has been converted by hydroboration-oxidation into proto-quercitol tetramethyl ether (5) which on demethylation afforded a mixture (2:1) of proto-quercitol (4) and vibo-quercitol (11). proto-Quecitol was also obtained (15percent) from conduritol A tetrabenzoate (3) by a similar sequence.

MICROBIAL OXIDATION IN SYNTHESIS: PREPARATION OF MYO-INOSITOL PHOSPHATES AND RELATED CYCLITOL DERIVATIVES FROM BENZENE.

Pseudomonas putida oxidation of benzene affords cis-3,5-cyclohexadiene-1,2-diol (2) which is used as a novel precursor for the synthesis of D- and L-myo-inositol 1,4,5-triphosphates, (-)-(1) and (+)-(1).The versatility of this approach to functionalised cyclitols is illustrated in the synthesis of myo-inositol 1-phosphate (19), 6-deoxy, 6-deoxy-6-fluoro, and 6-deoxy-6-methyl myo-inositols (31), (37) and (43), and their 1,4,5-trisphosphate derivatives (33), (39) and (45).

Polyfunctionalised Cyclohexanes from Dianhydrodeoxyinositols. cis-Deoxy-1,3(1,4)-inosadiamines from Benzene

A ca. 9 : 1 mixture (yield 87 - 90percent) of the stereoisomeric (1α,2α,6α)-/(1α,2β,6α)-2-bromo-7-oxa-bicyclohept-3-enes (7a/8a) is obtained via controlled NBS bromination of 4,5-epoxycyclohexene (5). 7a/8a are quantitatively equilibrated in the presence of tetraalkylammonium bromides (the equilibrium being controlled by the polarity of the solvent (3 : 7 in acetonitrile) and are isolated pure by chromatography.Through selective halogen substitution (7b/8b, 9b - d/10b - d) and ammonolysis the allylic epoxy alcohols 9a/10a are obtained in high yields.Stereospecific epoxidation of 7a/8a yields the (1α,2α,3α,5α,7α)-/(1α,2β,3α,5α,7α)-diepoxy bromides 12a/14a.The latter are equilibrated quantitatively to mixtures favoring either one in the ratio of ca. 9 : 1 (CCl4) and 1 : 9 (CH3CN), respectively.Upon SN2 substitution with ammonium acylates (-> 13b, c/15b, c) and ammonolysis the naturally not occurring dianhydrodeoxyinositols 13a/15a are isolated in practically quantitative yields.The usefulness of 13a/15a and of various derivatives for the stereoselective synthesis of cis-1,4- and cis-1,3-disubstituted cyclohexanetriols is exemplified by reactions with monovalent (H2O, HI, NaN3) and divalent nucleophiles (NH2NH2, CH3NHNH2).I.a. the cis-deoxy-1,3-inosadiamines 1 (2-deoxystreptamine)/2 and the cis-deoxy-1,4-inosadiamines 3/4 become available in high yields.

THE PREPARATION OF CYCLOHEXANEPENTOLS FROM INOSITOLS BY DEOXYGENATION

Several cyclohexapenetols heva been synthesized from inositols by blocking all but one hydroxyl group, converting the free hydroxyl group into its S-methyl dithiocarbonate, and treating it with tributylstannane.Suitable blocking-groups are methyl, benzyl, and methylthiomethyl ethers, and acetals.One cyclohexanepentol was prepared by the reductive deamination of an aminodeoxyinositol.