ChemicalBook >> CAS DataBase List >>(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one

(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one

(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one structure

CAS No.: 143140-06-1

Chemical Name:: (3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one

Synonyms: (3S-CIS)-2,3-DIHYDRO-7A-METHYL-3-PHENYLPYRROLO-[2,1-B]OXAZOL-5(7AH)-ONE;(3S-CIS)-2,3-DIHYDRO-7A-METHYL-3-PHENYLPYRROLO-[2,1-B]-OXAZOL-5(6H)-ONE;Pyrrolo[2,1-b]oxazol-5(7aH)-one, 2,3-dihydro-7a-methyl-3-phenyl-, (3S,7aR)-;(3S-cis)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo-[2,1-b]oxazol-5(7aH)-one,97%;(3S-CIS)-2,3-DIHYDRO-7A-METHYL-3-PHENYLPYRROLO-[2,1-B]OXAZOL-5(7AH)-ONE 97%;(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one;(3S-CIS)-(+)-2,3-DIHYDRO-7A-ME-3-PH-PYRR -OLO(21-B)OXAZOL-5(7AH)-ONE,98%(99+EE);(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b]oxazol-5(7aH)-one

CBNumber:: CB1280120

Molecular Formula:: C13H13NO2

Molecular Weight:: 215.25

MDL Number:: MFCD00274331

MOL File:: 143140-06-1.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-09-12 18:49:08

Request For Quotation

(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one Properties

Melting point	88-92 °C
Boiling point	355.53°C (rough estimate)
Density	1.1242 (rough estimate)
refractive index	1.5500 (estimate)
pka	-1.90±0.60(Predicted)
optical activity	[α]20/D +124°, c = 1 in chloroform
InChI	1S/C13H13NO2/c1-13-8-7-12(15)14(13)11(9-16-13)10-5-3-2-4-6-10/h2-8,11H,9H2,1H3/t11-,13-/m1/s1
InChIKey	UFQSRYWJCHFOQX-DGCLKSJQSA-N
SMILES	C[C@]12OC[C@@H](N1C(=O)C=C2)c3ccccc3
CAS DataBase Reference	143140-06-1
UNSPSC Code	12352005
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302+H312+H332
Precautionary statements	P261-P264-P280-P301+P312-P302+P352+P312-P304+P340+P312
PPE	dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes	Xn
Risk Statements	20/21/22
Safety Statements	36/37-36
WGK Germany	3
Storage Class	11 - Combustible Solids
Hazard Classifications	Acute Tox. 4 Oral

(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one price More Price(3)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	458570	(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b]oxazol-5(7aH)-one 98%	143140-06-1	250mg	$61.5	2023-01-07	Buy
Chem-Impex	41607	(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b]oxazol-5(7aH)-one ≥99%(Chiralpurity)	143140-06-1	250MG	$56.99	2026-05-19	Buy
American Custom Chemicals Corporation	CHM0004646	(3S-CIS)-(+)-2,3-DIHYDRO-7A-METHYL-3-PHENYLPYRROLO[2,1-B]OXAZOL-5(7AH)-ONE 95.00%	143140-06-1	250MG	$593.4	2021-12-16	Buy

Product number	Packaging	Price	Buy
458570	250mg	$61.5	Buy
41607	250MG	$56.99	Buy
CHM0004646	250MG	$593.4	Buy

(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one Chemical Properties, Uses, Production

Chemical Properties

cream crystalline powder

Uses

High levels of asymmetric induction have been obtained with this chiral bicyclic lactam in cycloadditions, alkylations, conjugate additions, annulations, and dihydroxylations.

(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one Preparation Products And Raw materials

Raw materials

Preparation Products

(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one Suppliers

Global Suppliers ( 11)

Supplier	Tel	Email	Country	ProdList	Advantage
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Sigma-Aldrich	021-61415566 800-8193336	orderCN@merckgroup.com	China	51389	80
Aladdin Scientific		tp@aladdinsci.com	United States	50068	58

Supplier	Advantage
Energy Chemical	61
Sigma-Aldrich	80
Aladdin Scientific	58

(3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one Spectrum

(3S-CIS)-(+)-2,3-DIHYDRO-7A-METHYL-3-PHENYLPYRROLO[2,1-B ]OXAZOL-5(7A H)-ONE(143140-06-1)IR

143140-06-1 ((3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one) Related Search:

(3R-cis)-(-)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one (3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one (R)-(+)-N-Allyl-alpha-methylbenzylamine& 1-Benzyl-1,5-dihydro-pyrrol-2-one 1-Benzyl-2,5-dihydro-1H-pyrrole

MYCOLIDE (R)-1-(2-Hydroxy-1-phenylethyl)-1,5-dihydropyrrol-2-one

1of2

(3S-CIS)-2,3-DIHYDRO-7A-METHYL-3-PHENYLPYRROLO-[2,1-B]-OXAZOL-5(6H)-ONE (3S-CIS)-2,3-DIHYDRO-7A-METHYL-3-PHENYLPYRROLO-[2,1-B]OXAZOL-5(7AH)-ONE (3S-CIS)-(+)-2,3-DIHYDRO-7A-ME-3-PH-PYRR -OLO(21-B)OXAZOL-5(7AH)-ONE,98%(99+EE) (3S-CIS)-2,3-DIHYDRO-7A-METHYL-3-PHENYLPYRROLO-[2,1-B]OXAZOL-5(7AH)-ONE 97% (3S-cis)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo-[2,1-b]oxazol-5(7aH)-one,97% Pyrrolo[2,1-b]oxazol-5(7aH)-one, 2,3-dihydro-7a-methyl-3-phenyl-, (3S,7aR)- (3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b]oxazol-5(7aH)-one (3S-cis)-(+)-2,3-Dihydro-7a-methyl-3-phenylpyrrolo[2,1-b ]oxazol-5(7a H)-one 143140-06-1 Others Heterocyclic Building Blocks Chiral Building Blocks Asymmetric Synthesis Chiral Building Blocks Heterocyclic Building Blocks Others