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24305

Sigma-Aldrich

Chloro(diisopropylamino)methoxyphosphine

technical, ≥90% (GC)

Synonym(s):

Methyl N,N-diisopropylphosphoramidochloridite

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About This Item

Linear Formula:
[(CH3)2CH]2NP(OCH3)Cl
CAS Number:
Molecular Weight:
197.64
Beilstein/REAXYS Number:
3600769
MDL number:
UNSPSC Code:
12350000
PubChem Substance ID:

grade

technical

assay

≥90% (GC)

form

liquid (turbid viscous)

color

turbid, viscous

refractive index

n20/D 1.470

density

1.023 g/mL at 20 °C (lit.)

SMILES string

COP(Cl)N(C(C)C)C(C)C

Other Notes

Phosphitylating agent used in the synthesis of oligonucleotides by the phosphoramidite method [1]; Preparation of mixed diester-amides [2]

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F Seela et al.
Nucleic acids research, 15(7), 3113-3129 (1987-04-10)
1,3-Propanediol was protected with one dimethoxytrityl residue and converted into the methoxy- and cyanoethoxyphosphoramidites 2a and 2b, respectively. Solid-phase oligonucleotide synthesis, employing the phosphoramidite 2a resulted in the dodecamers d(CGCGAATTCGCG) (6-9), in which dA or dT residues were replaced by
M H Caruthers
Science (New York, N.Y.), 230(4723), 281-285 (1985-10-18)
Deoxyoligonucleotides can now be synthesized rapidly and in high yield because of recent advances in nucleic acid chemistry. Key innovations include solid-phase synthesis on silica-based supports and the development of stable deoxynucleoside phosphoramidites as synthons. When incorporated into manual, semiautomatic

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