Pharmaceutial Intermediates
  • tert-Butyl (4R-cis)-6-formaldehydel-2,2-dimethyl-1,3-dioxane-4-acetate

    • Product Name   :   

      tert-Butyl (4R-cis)-6-formaldehydel-2,2-dimethyl-1,3-dioxane-4-acetate

    • CAS No   :   

      124752-23-4

    • Project State   :   

      Commercial

    Application

    General Description

    Cost-effective customized wholesale tert-Butyl (4R-cis)-6-formaldehydel-2,2-dimethyl-1,3-dioxane-4-acetate 124752-23-4

    • Molecular Formula:C13H22O5
    • Molecular Weight:258.315
    • Vapor Pressure:0mmHg at 25°C 
    • Refractive Index:1.47 
    • Boiling Point:320.344 °C at 760 mmHg 
    • Flash Point:140.583 °C 
    • PSA:61.83000 
    • Density:1.073 g/cm3 
    • LogP:1.82730 

    tert-Butyl (4R-cis)-6-formaldehydel-2,2-dimethyl-1,3-dioxane-4-acetate(Cas 124752-23-4) Usage

    InChI:InChI=1/C13H22O5/c1-12(2,3)18-11(15)7-9-6-10(8-14)17-13(4,5)16-9/h8-10H,6-7H2,1-5H3/t9-,10+/m1/s1

    124752-23-4 Relevant articles

    A new way to tert-Butyl [(4R,6R)-6-aminoethyl-2,2-dimethyl-1,3-dioxan-4-yl]acetate, a key intermediate of atorvastatin synthesis

    Radl, Stanislav

    , p. 2275 - 2283 (2003)

    A new synthesis of tert-butyl [(4R,6R)-6...

    Preparation method of rosuvastatin calcium intermediate

    -

    Paragraph 0033-0049, (2021/07/08)

    The invention belongs to the technical f...

    Method for preparing rosuvastatin side chain through oxidation in continuous flow micro-channel reactor

    -

    Paragraph 0042-0089, (2020/08/12)

    The invention relates to a method for pr...

    Preparation method of rosuvastatin side chain intermediate

    -

    Paragraph 0047-0063; 0079-0082; 0086-0087, (2020/08/30)

    The invention belongs to the technical f...

    Rosuvastatin calcium intermediate, preparation method thereof and application of intermediate

    -

    Paragraph 0083-0085, (2019/04/17)

    The invention discloses a rosuvastatin c...

    124752-23-4 Process route

    1,1-dimethylethyl (4R-cis)-6-hydroxymethyl-2,2-dimethyl-1,3-dioxane-4-acetate
    124655-09-0,407577-54-2

    1,1-dimethylethyl (4R-cis)-6-hydroxymethyl-2,2-dimethyl-1,3-dioxane-4-acetate

    tert-butyl 2-[(4R,6S)-6-formyl-2,2-dimethyl-1,3-dioxan-4-yl]acetate
    124752-23-4

    tert-butyl 2-[(4R,6S)-6-formyl-2,2-dimethyl-1,3-dioxan-4-yl]acetate

    Conditions
    Conditions Yield
    With hydrogenchloride; sodium hypochlorite; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; sodium hydrogencarbonate; potassium bromide; In dichloromethane; water; at 0 - 5 ℃; pH=8 - 10; Temperature; Solvent; Inert atmosphere;
    98%
    Swern oxidation; (further oxidizing agents);
    97%
    1,1-dimethylethyl (4R-cis)-6-hydroxymethyl-2,2-dimethyl-1,3-dioxane-4-acetate; With dimethyl sulfoxide; N-ethyl-N,N-diisopropylamine; In dichloromethane; at -5 - 0 ℃; for 0.5h;
    With pyridine; sulfur trioxide pyridine complex; dimethyl sulfoxide; In dichloromethane; at -5 - 20 ℃; for 1.16667h;
    93%
    With sodium hypochlorite; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; potassium bromide; In dichloromethane; water; at 5 - 10 ℃; for 0.166667h; Temperature; Flow reactor;
    93.5%
    With [2,2]bipyridinyl; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; oxygen; copper(l) chloride; In dichloromethane; acetonitrile; at 40 ℃;
    90%
    With tetrapropylammonium perruthennate; 4-methylmorpholine N-oxide; In dichloromethane; acetonitrile; at 0 - 25 ℃; for 5.5h; Molecular sieve;
    86%
    With 2,2,6,6-tetramethyl-piperidine-N-oxyl; sodium hypochlorite; sodium hydrogencarbonate; potassium bromide; In dichloromethane; at -15 - 0 ℃; pH=10; Solvent; Temperature; Concentration;
    85.9%
    With sodium hypochlorite; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; sodium hydrogencarbonate; potassium bromide; In dichloromethane; water; at -15 - 5 ℃; for 1h; Large scale;
    83%
    With oxalyl dichloride; dimethyl sulfoxide; triethylamine; In dichloromethane; at -60 - 20 ℃;
    77%
    With sodium hydrogencarbonate;
    65%
    With sodium hypochlorite; TEMPOL; sodium hydrogencarbonate; potassium bromide; In water; ethyl acetate; at -10 - 5 ℃; for 1h; Inert atmosphere;
    54%
    With sodium hypochlorite; sodium hydrogencarbonate; potassium bromide; 4-oxo-2,2,6,6-tetramethylpiperidin-oxyl; In dichloromethane; water; at 0 - 5 ℃; for 1 - 2h;
    With sodium hypochlorite; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; potassium bromide; In dichloromethane; at -15 - -5 ℃;
    1,1-dimethylethyl (4R-cis)-6-hydroxymethyl-2,2-dimethyl-1,3-dioxane-4-acetate; With potassium bromide; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; In dichloromethane; at -15 - -5 ℃; for 0.25h;
    With sodium hypochlorite; In dichloromethane; at -15 - -5 ℃; for 0.25h;
    1,1-dimethylethyl (4R-cis)-6-hydroxymethyl-2,2-dimethyl-1,3-dioxane-4-acetate; With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; sodium hydrogencarbonate; potassium bromide; In dichloromethane; at 0 - 5 ℃; for 0.25h;
    With sodium hypochlorite; sodium hydrogencarbonate; In dichloromethane; water; at 0 - 5 ℃; for 1.66667h;
    19.2 g
    With [2,2]bipyridinyl; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; oxygen; copper(l) chloride; In dichloromethane; acetonitrile; at 25 - 40 ℃; Solvent;
    1,1-dimethylethyl (4R-cis)-6-hydroxymethyl-2,2-dimethyl-1,3-dioxane-4-acetate; With oxalyl dichloride; dimethyl sulfoxide; In dichloromethane; at -78 - 20 ℃; for 0.25h; Inert atmosphere;
    With triethylamine; In dichloromethane; at -78 - 20 ℃; for 4h; Inert atmosphere;
    With oxalyl dichloride; triethylamine; In dichloromethane; dimethyl sulfoxide;
    With N-chloro-succinimide; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; tetrabutylammomium bromide; sodium hydrogencarbonate; potassium carbonate; In dichloromethane; at 10 ℃; for 5h; pH=7.5; Reagent/catalyst; Solvent; Temperature; pH-value;
    253.6 g
    (4R-cis)-6-[(acetyloxy)methyl]-2,2-dimethyl-1,3-dioxane-4-acetic acid tert-butyl ester
    154026-95-6

    (4R-cis)-6-[(acetyloxy)methyl]-2,2-dimethyl-1,3-dioxane-4-acetic acid tert-butyl ester

    tert-butyl 2-[(4R,6S)-6-formyl-2,2-dimethyl-1,3-dioxan-4-yl]acetate
    124752-23-4

    tert-butyl 2-[(4R,6S)-6-formyl-2,2-dimethyl-1,3-dioxan-4-yl]acetate

    Conditions
    Conditions Yield
    (4R-cis)-6-[(acetyloxy)methyl]-2,2-dimethyl-1,3-dioxane-4-acetic acid tert-butyl ester; With methanol; potassium carbonate; for 3h;
    With sodium hypochlorite; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; sodium hydrogencarbonate; potassium bromide; In dichloromethane; at -5 - 5 ℃; for 1h;
    96.1%
    Multi-step reaction with 2 steps
    1: potassium carbonate; methanol / 0.5 h
    2: copper(l) chloride; [2,2]bipyridinyl; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; oxygen / acetonitrile; dichloromethane / 25 - 40 °C
    With methanol; [2,2]bipyridinyl; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; oxygen; potassium carbonate; copper(l) chloride; In dichloromethane; acetonitrile;
    Multi-step reaction with 2 steps
    1: sodium hydroxide / dichloromethane; methanol
    2: triethylamine; oxalyl dichloride / dichloromethane; dimethyl sulfoxide
    With oxalyl dichloride; triethylamine; sodium hydroxide; In methanol; dichloromethane; dimethyl sulfoxide;

    124752-23-4 Upstream products

    • 124655-09-0
      124655-09-0

      1,1-dimethylethyl (4R-cis)-6-hydroxymethyl-2,2-dimethyl-1,3-dioxane-4-acetate

    • 147489-02-9
      147489-02-9

      isopropyl (2S,3R,4S,6R)-7-t-butoxycarbonyl-2,3-dihydroxy-4,6-isopropylidenedioxyheptanoate

    • 147489-00-7
      147489-00-7

      isopropyl (2S,3R,4S,6R)-7-t-butoxycarbonyl-2,3-bis(t-butyldimethylsilyloxy)-4,6-dihydroxyheptanoate

    • 147489-01-8
      147489-01-8

      isopropyl (2S,3R,4S,6R)-7-t-butpxycarbonyl-2,3-bis(t-butyldimethylsilyloxy)-4,6-isopropylidenedioxyheptanoate

    124752-23-4 Downstream products

    • 129894-42-4
      129894-42-4

      ((4R,6S)-6-{(Z)-2-[4-(4-Fluoro-phenyl)-2-isopropyl-6-phenyl-pyridin-3-yl]-vinyl}-2,2-dimethyl-[1,3]dioxan-4-yl)-acetic acid tert-butyl ester

    • 124655-11-4
      124655-11-4

      ((4R,6S)-6-{(E)-2-[4-(4-Fluoro-phenyl)-2-isopropyl-6-phenyl-pyridin-3-yl]-vinyl}-2,2-dimethyl-[1,3]dioxan-4-yl)-acetic acid tert-butyl ester

    • 147489-06-3
      147489-06-3

      (4R,6S)-(E)-{6-[2-(2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl)-vinyl]-2,2-dimethyl-1,3-dioxan-4-yl}acetic acid tert-butyl ester

    • 916314-43-7
      916314-43-7

      tert-butyl 2-((4R,6S)-6-((E)-2-(4-(4-fluorophenyl)-2,6-diisopropyl-5-[(d3-methoxy)methyl]pyridin-3-yl)vinyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate

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