Carbonic acid isobutyl ester (2S,3S,6S)-6-isopropoxy-3-(toluene-4-sulfonylamino)-3,6-dihydro-2H-pyran-2-ylmethyl ester

Base Information

Chemical Name:Carbonic acid isobutyl ester (2S,3S,6S)-6-isopropoxy-3-(toluene-4-sulfonylamino)-3,6-dihydro-2H-pyran-2-ylmethyl ester
CAS No.:134787-00-1
Molecular Formula:C₂₁H₃₁NO₇S
Molecular Weight:441.546
Hs Code.:

Synonyms:Carbonic acid isobutyl ester (2S,3S,6S)-6-isopropoxy-3-(toluene-4-sulfonylamino)-3,6-dihydro-2H-pyran-2-ylmethyl ester

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Chemical Property of Carbonic acid isobutyl ester (2S,3S,6S)-6-isopropoxy-3-(toluene-4-sulfonylamino)-3,6-dihydro-2H-pyran-2-ylmethyl ester

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Technology Process of Carbonic acid isobutyl ester (2S,3S,6S)-6-isopropoxy-3-(toluene-4-sulfonylamino)-3,6-dihydro-2H-pyran-2-ylmethyl ester

There total 1 articles about Carbonic acid isobutyl ester (2S,3S,6S)-6-isopropoxy-3-(toluene-4-sulfonylamino)-3,6-dihydro-2H-pyran-2-ylmethyl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 70.0%

: 134768-92-6
Carbonic acid (2R,3S,6S)-2-isobutoxycarbonyloxymethyl-6-isopropoxy-3,6-dihydro-2H-pyran-3-yl ester isobutyl ester

: 70-55-3
toluene-4-sulfonamide

: 134787-00-1
Carbonic acid isobutyl ester (2S,3S,6S)-6-isopropoxy-3-(toluene-4-sulfonylamino)-3,6-dihydro-2H-pyran-2-ylmethyl ester

Guidance literature:: With tetrakis(triphenylphosphine) palladium⁽⁰⁾; triphenylphosphine; In tetrahydrofuran; for 6h; Heating;
DOI:10.1016/S0040-4020(97)00012-4

Reference yield: 92.0%

: 134787-00-1
Carbonic acid isobutyl ester (2S,3S,6S)-6-isopropoxy-3-(toluene-4-sulfonylamino)-3,6-dihydro-2H-pyran-2-ylmethyl ester

: 106-95-6
allyl bromide

: 134768-97-1
isopropyl 6-O-(isobutoxycarbonyl)-4--2,3,4-trideoxy-α-D-erythro-hex-2-enopyranoside

Guidance literature:: With sodium hexamethyldisilazane; tetra-(n-butyl)ammonium iodide; In tetrahydrofuran; Ambient temperature;
DOI:10.1016/S0040-4020(97)00012-4

Reference yield:

: 134787-00-1
Carbonic acid isobutyl ester (2S,3S,6S)-6-isopropoxy-3-(toluene-4-sulfonylamino)-3,6-dihydro-2H-pyran-2-ylmethyl ester

: 134769-04-3
(1S,2S,6R)-2-isobutoxycarboxymethyl-7-methylidene-3-oxa-9-tosylamidobicyclo<4.3.0>non-4-ene

Guidance literature:: Multi-step reaction with 2 steps

1: 92 percent / Bu₄NI, NaN(SiMe₃)2 / tetrahydrofuran / Ambient temperature

2: 84 percent / Pd(PPh₃)4, PPh₃ / acetic acid / 2 h / 80 °C

With tetrakis(triphenylphosphine) palladium⁽⁰⁾; sodium hexamethyldisilazane; tetra-(n-butyl)ammonium iodide; triphenylphosphine; In tetrahydrofuran; acetic acid;
DOI:10.1016/S0040-4020(97)00012-4